12 1/4 x 9 3/4" White Side Loading Stayflats Lite® Mailers
- Manufactured from white chipboard.
- Lightweight to save on postage.
- No additional stiffeners needed.
- Side loading style makes inserting and retrieving documents easier.
- Peel-and-seal closure.
- Pull tab tear strip for easy opening.
Stock Number | Pricing |
|---|---|
| Stock NumberRM129 | Pricing |

Outside Dimensions W x L: 12 1/4 x 9 3/4"
Thickness: .028
Quantity Per Case: 100
Order in Multiples of: 1
Freight Class: 60
Weight: 23.18 EA
NMFC Code: 20475-11
Ships Parcel: Yes
The 12-1/4 x 9-3/4" White Side-Loading Stayflats Lite® Mailers are rigid flat mailers constructed from white chipboard, providing built-in stiffness that eliminates the need for separate stiffener inserts. The side-loading configuration lets contents slide in and out quickly, and the peel-and-seal adhesive strip closes the mailer without tape or additional supplies. A pull-tab tear strip gives recipients a clean, tool-free opening experience.
These mailers are well suited for document fulfillment houses, photo labs, print shops, legal and financial service firms, and retail e-commerce operations shipping certificates, artwork, or promotional prints. Any application that demands bend-free, presentation-quality delivery benefits from the chipboard's inherent rigidity.
The lightweight chipboard construction keeps postage weight lower than heavier rigid mailer formats, supporting cost efficiency in ongoing flat-item shipping programs. Mailers are parcel-friendly and sold in cases of 100, making them practical for regular replenishment in warehouse and office shipping environments.
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