11 x 13 x 4 Poly Flat Expansion Mailer
Poly Expansion Mailers - Perfect for apparel , soft goods , pre-packaged and bulkier items that don't need cushioning.
- Self-Seal tamper evident closure
- 3.0 mil polyethene exterior film
- water resistant
- Bright White
- 4" gusset
- Anti-static liner for easy application