Bubble mailers, postcard size, plastic, large quantity, unopened. - Size: Bubble mailer - Quantity: Large (unopened), some opened for photography. - Material: Plastic (white cushion envelope with adhesive) Thank you for viewing. These have been stored for a long time because the size didn't fit my needs. Outer dimensions: 12.2 x 22.6 (17.0) cm Inner dimensions: 9.7 x 17.0 cm There is no gusset, so please consider the size with some allowance.