{"product_id":"7x9-white-chipboard-self-seal-mailers-100-case","title":"7x9\" White Chipboard Self-Seal Mailers - 100\/Case","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003e7x9\" white chipboard self-seal Stayflats mailers, sold in a case of 100. Same rigid chipboard \"do not bend\" construction as the tab-lock series, but with a peel-and-seal adhesive strip instead of a mechanical tab — pack out a sealed, tamper-evident mailer in one motion. Faster on a high-volume fulfillment line, and more secure for one-way shipments where the mailer should not be reopened cleanly.\u003c\/p\u003e\n\u003ch3\u003eSpecs at a glance\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct type\u003c\/th\u003e\n\u003ctd\u003eRigid chipboard self-seal mailer (Stayflats)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInside dimensions (W x L)\u003c\/th\u003e\n\u003ctd\u003e7 x 9\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\u003c\/th\u003e\n\u003ctd\u003ePeel-and-seal adhesive strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eHeavy white chipboard, rigid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStay-flat protection\u003c\/th\u003e\n\u003ctd\u003eYes — resists bending in transit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMailers per case\u003c\/th\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eBest for\u003c\/h3\u003e\n\u003cp\u003eBest for ecommerce shippers and document fulfillment teams handling photos, prints, certificates, and flat collectibles in volume. The pre-applied adhesive seals in seconds without an impulse sealer or tape gun. Once sealed, the bond resists casual reopening, providing a basic level of tamper evidence.\u003c\/p\u003e\n\u003ch3\u003eWhen to use this product\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eVolume photo, art print, and certificate fulfillment where a tape-free seal speeds pack-out.\u003c\/li\u003e\n \u003cli\u003eSports cards, trading cards, posters, and other \"do not bend\" goods that ship one-way.\u003c\/li\u003e\n \u003cli\u003eDocument mailers where a self-sealing closure communicates tamper-evidence to the recipient.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to choose something else\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eFor mailers that may be opened and re-closed during fulfillment, choose a tab-lock variant.\u003c\/li\u003e\n \u003cli\u003eFor thicker or 3D items, see padded mailers, \u003ca href=\"\/collections\/bubble-mailers\"\u003ebubble mailers\u003c\/a\u003e, or the \u003ca href=\"\/collections\/mailer-boxes\"\u003emailer boxes collection\u003c\/a\u003e.\u003c\/li\u003e\n \u003cli\u003eFor lightweight letter-only mailings without rigidity needs, a paper envelope is more economical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNeed help choosing the right mailer?\u003c\/h3\u003e\u003cp\u003eNot sure if a chipboard mailer, padded mailer, bubble mailer, or paper envelope fits your shipment? Read the \u003ca href=\"\/pages\/mailers-guide\"\u003eMailers Buying Guide\u003c\/a\u003e for a head-to-head comparison of mailer types, use the \u003ca href=\"\/pages\/mailer-vs-box-selector\"\u003eMailer vs Box Selector\u003c\/a\u003e to decide between a mailer and a corrugated box, or check the \u003ca href=\"\/pages\/bubble-mailer-size-guide\"\u003eBubble Mailer Size Guide\u003c\/a\u003e if you are sizing a bubble mailer to a specific product.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eHow is self-seal different from tab-lock?\u003c\/strong\u003e\u003cbr\u003eSelf-seal uses a peel-and-press adhesive strip — fastest on a fulfillment line, and once sealed it stays sealed. Tab-lock is a mechanical fold-and-tuck closure with no adhesive — slower to close but reusable. Choose self-seal for one-way, high-volume; tab-lock for low-volume or reusable use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre self-seal chipboard mailers tamper-evident?\u003c\/strong\u003e\u003cbr\u003eThe pressure-sensitive adhesive provides basic tamper evidence — once peeled, the bond is visibly disturbed and cannot be re-sealed cleanly. Use specialty tamper-evident packaging for legal chain-of-custody.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the rigidity hold up through automated mail sorting?\u003c\/strong\u003e\u003cbr\u003eYes — Stayflats chipboard is engineered to resist bend stress on USPS and UPS automated lines. Print \"Do Not Bend\" on the face for clear handler instruction.\u003c\/p\u003e\n\u003ch3\u003eRecommended add-ons and related links\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrowse the full \u003ca href=\"\/collections\/mailers-envelopes\"\u003eMailers \u0026amp; Envelopes collection\u003c\/a\u003e for adjacent sizes and mailer styles.\u003c\/li\u003e\n\u003cli\u003eFor shipments that need a rigid carton instead of a flat mailer, see the \u003ca href=\"\/collections\/mailer-boxes\"\u003emailer boxes collection\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- packrift-enriched --\u003e\n\u003cdiv class=\"packrift-enrichment\"\u003e\n\u003csection class=\"pf-best-for\"\u003e\u003ch3\u003eBest For\u003c\/h3\u003e\n\u003cp\u003eUse for e-commerce brands shipping photos, documents, and light merchandise that demand professional presentation without additional padding costs. The 7 x 9\" white self-seal format with.020 chipboard construction provides rigid protection while maintaining a sleek, branded appearance that reinforces customer trust upon arrival.\u003c\/p\u003e\n\u003cp\u003eStayflats Plus® mailers feature integrated peel-and-seal closure for consistent, tamper-evident sealing without extra adhesive strips or equipment. The lightweight chipboard eliminates the need for stiffeners, reducing material costs and dimensional weight charges while the easy-tear pull tab strip simplifies fulfillment operations and improves unboxing experience.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"pf-specs\"\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e.020 Chipboard (Rigid Fiberboard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e7\" W x 9\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eClosure Type\u003c\/th\u003e\n\u003ctd\u003ePeel-and-Seal with Pull Tab Tear Strip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eQuantity Per Case\u003c\/th\u003e\n\u003ctd\u003e100 Mailers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRecyclable\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"pf-use-cases\"\u003e\u003ch3\u003eCommon Use Cases\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePhotography and print fulfillment for online retailers\u003c\/li\u003e\n\u003cli\u003eDocument and certificate shipping for professional services\u003c\/li\u003e\n\u003cli\u003eFlat merchandise protection (apparel samples, fabric swatches)\u003c\/li\u003e\n\u003cli\u003eSubscription box and e-commerce brand packaging\u003c\/li\u003e\n\u003cli\u003eLightweight product mailers reducing freight spend\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pf-included\"\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e100 white self-seal stayflat mailers (7\" x 9\")\u003c\/li\u003e\n\u003cli\u003ePre-integrated peel-and-seal closure strips\u003c\/li\u003e\n\u003cli\u003eEasy-tear pull tab on each mailer\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"pf-shipping\"\u003e\u003ch3\u003eShipping and Packaging\u003c\/h3\u003e\n\u003cp\u003eShips flat in a single case for space-efficient warehouse storage. Stacked format maintains inventory organization and accelerates fulfillment picking processes.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"pf-faq\"\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails\u003e\u003csummary\u003eDo these mailers require additional stiffeners or bubble mailers?\u003c\/summary\u003e\u003cp\u003eNo. The.020 chipboard construction provides inherent rigidity to protect documents and light merchandise without additional padding, reducing material costs and fulfillment complexity.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eHow does the self-seal closure work?\u003c\/summary\u003e\u003cp\u003eSimply peel back the adhesive strip and press firmly to seal. The integrated peel-and-seal design creates a tamper-evident closure without tape, hot-melt, or additional supplies.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eWill these mailers fit standard shipping label dimensions?\u003c\/summary\u003e\u003cp\u003eYes. The 7\" x 9\" format accommodates standard 4\" x 6\" shipping labels and integrates directly with major carrier systems (USPS, UPS, FedEx).\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eAre these mailers environmentally friendly?\u003c\/summary\u003e\u003cp\u003eYes. Stayflats Plus® mailers are 100% recyclable chipboard, supporting e-commerce brands committed to sustainable packaging practices.\u003c\/p\u003e\u003c\/details\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c!-- \/packrift-enriched --\u003e","brand":"Packrift","offers":[{"title":"Default Title","offer_id":53476002529648,"sku":"RM10SS","price":38.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1004\/9159\/2048\/files\/RM10SS.jpg?v=1775011621","url":"https:\/\/packrift.com\/products\/7x9-white-chipboard-self-seal-mailers-100-case","provider":"Packrift","version":"1.0","type":"link"}