25pcs/order. we don’t ship items to APO’s, FPO’s, AE’. exterior size: 19″ x 24″+ (1.5″flap). interior size: 19″ x 24″ (2.5 Mil thickness) * gray outer surface, black inner layer. * high quality self sealing mailers. * strong glue. * water proof. * tear resistant. * lightweight. * 100% recyclable. * No international shipping.