500pcs/order. we don’t ship items to APO’s, FPO’s, AE’s exterior size: 12″ x 16″+1.5″flap. interior size: 12″ x 16″ 2.5 Mil * white outer surface, black inner layer. * high quality self sealing mailers. * water proof. * tear resistant. * lightweight. * 100% recyclable. * No international shipping. * This item is made of pure plastic material, not recycled plastic. * Don’t get stuck with those cheap ones!