Partners BrandPoly Mailers attract attention to ensure your package will be opened right away! These mailers are made of strong polyethylene and are water resistant to protect products from moisture during shipping. These lightweight mailers save on postage and feature strong seams for over stuffing. Mailer measures x 15-1/2" and sold 100 per case. Strong polyethylene. Self-seal closure. Protect products from moisture during shipping. Outside dimensions: 15 1/2"H x 12"W.outer and the inner lining is silver. 100 per case. Mailers are puncture, water, tamper and tear-resistant. High strength seams will keep contents intact even if over packed. Labels stamps and ink adhere well. Opens easily with a perforated tear strip. Colored mailers attract attention. Strong polyethylene mailers protect products from moisture during shipping. Dimensions: x 15-1/2". Colored mailers attract attention. Mailers are puncture, water, tamper and tear resistant. High strength seams will keep contents intact even if over packed. Labels stamps and ink adhere well. Opens easily with a perforated tear strip. Self-seal. Colored Poly Mailers attract attention and open easily with a perforated tear strip.