Ideal for businesses packaging small, lightweight products like pharmaceuticals, cosmetics, electronics, or food items in compact 2.5" x 2.5" x 4" dimensions. These kraft reverse tuck folding cartons deliver professional protection and compliance-ready shipping for e-commerce, retail, and direct-to-consumer operations.

Best For
How to choose
Specs at a Glance
| Material | .024 Point Die-Cut Fibreboard |
| Dimensions | 2 1/2" x 2 1/2" x 4" |
| Color | Kraft |
| Closure Type | Reverse Tuck with Pye-Lock Tucks |
| Recyclable | Yes |
Common Use Cases
- Pharmaceutical and supplement packaging Small cosmetics and personal care products Electronics accessories and small components Food products and specialty confections Sample kits and subscription box items
What You'll Receive
- 500 flat, unassembled kraft reverse tuck folding cartons per case Pre-die-cut and ready for immediate assembly
Shipping & Packaging
Frequently Asked Questions
No. The integrated pye-lock tuck design provides positive locking closure without adhesive, tape, or additional fasteners, reducing assembly time and labor costs.
Yes. These reverse tuck folding cartons meet or exceed federal specification PPP-B-566, ensuring full compliance with USPS, UPS, FedEx, and DHL packaging standards.
Each case contains 500 flat, unassembled cartons. Flat-packed design significantly reduces case weight and shipping costs compared to pre-assembled alternatives.
These are standard kraft cartons. For custom printing or branding options, contact our sales team for bulk customization pricing and lead times starting at 1,000+ unit quantities.
Technical Specifications
| Closure Type | Reverse Tuck with Pye-Lock Tucks |
| Recyclable | Yes |
| Color | Kraft |
| Strength / Material | .024 Point Die-Cut Fibreboard |
| Dimensions (Internal) | 2 1/2" × 2 1/2" × 4" (L × W × H) |
Shipping Information
Outer Carton Dimensions
2 1/2" × 2 1/2" × 4" (L × W × H)
Unit of Measure
CASE
Qty Per Shipping Unit
500 PER CASE
LTL Freight Class
Class 70
Delivery Method
Shown at checkout
Processing and delivery timelines vary by product, warehouse, order size, and destination. Freight-sensitive or oversized items may require LTL delivery or a custom quote before shipment.
Checkout shows available shipping options for the selected SKU and quantity. Use the shipping and refund policy links for current policy details before ordering.
For larger, recurring, freight-sensitive, or mixed-SKU orders, send the SKU or product link, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.
ORDER SUPPORT
Product Support
Specs, case quantities, and availability are listed on each product page. For bulk, mixed-SKU, or LTL freight orders, email support@packrift.com with the SKU, quantity, and delivery ZIP.
Use product support for fit, larger or recurring order, return, or order-issue questions. When price and Add to Cart are shown, checkout remains the direct ordering path.
Need a sample, fit check, or substitution review? Contact product support with the SKU, selected option, order quantity, and use case. Support will confirm the available path for that item.
Contact product supportBuyer guides
Buying notes and spec resources stay here instead of taking space above the cart.
Use this product as the source
2.5x2.5x4 Kraft Reverse Tuck Folding Cartons - Case of 500
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Compare resources using the current product page data: SKU RTS18 , type Chipboard Cartons , sold-as unit CASE / pack count 500 PER CASE . Confirm the product page price, availability, and selected variant before ordering.
Compare inside dimensions, board grade, style, and bundle quantity.
Product support Use the box size calculatorUse this tool when item size, void fill, or storage space affects the carton.



