18x51" Self-Seal Poly Mailers 4 Mil - Tear-Proof, Case of 25
$46.05
/ case of 25$1.84 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
18" × 51"
Board / material
Polyethylene
Color
White
Freight class
Class 60
Specifications
| Inside dimensions | 18" × 51" (L × W) |
|---|---|
| Board / material | Polyethylene |
| Color | White |
| Sold as | Case of 25 |
| Order in multiples of | 1 |
| Case weight | 7.1 lb |
| Outer carton (shipping) | 19.5 × 15.0 × 1.75 in |
| LTL freight class | Class 60 |
| GTIN | 848109045054 |
| SKU | LPM1851 |
About this item
SKU LPM1851 — 18" × 51", Polyethylene, White. Sold as a case of 25, shipped from US warehouses.
The 18x51" Self-Seal Poly Mailers 4 Mil - Tear-Proof is a shipping mailer for documents, catalogs, apparel, small parts, photos, and lightweight e-commerce orders. Listed specs include size 18" x 51"; poly material; 4 Mil; case of 25. Use it as a mailing envelope, poly mailer, padded mailer, or flat document shipper when the item fits the listed size.
Large poly mailers: Good fit for shipping clothing, apparel, soft goods, returns, catalog packs, and other non-fragile ecommerce orders. These mailers help ecommerce teams and small businesses choose protective, right-sized packaging for common fulfillment workflows.
Common questions
Is this the right mailer for my order?
Use 18x51" Self-Seal Poly Mailers 4 Mil - Tear-Proof, Case of 25 when your item or workflow matches small shipments where the item fits the listed usable mailer size and does not require a carton. Check the live product page against your needs before ordering.
What specs should I confirm before checkout?
Confirm usable size, material, cushioning, closure, and case quantity. This listing is summarized by size: 18 x 51 in; material: poly; quantity: Case of 25. Use the current SKU, variant, price, availability, and delivery options shown on the product page.
Can I request this for a larger or repeat order?
Yes. For larger quantities, mixed-SKU orders, or recurring supply, send Packrift the product link or SKU, quantity, delivery ZIP code, receiving notes, and timing.
How should I plan delivery for this item?
Delivery options and timing are shown at checkout based on the item, quantity, and destination. For larger, freight-sensitive, or mixed-SKU orders, request a quote before placing the order.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.