50 Poly Mailerstough White 6″ x 9″ outside closedopen size is 10 3/4″ LongThis poly envelope mailer … does not have a bubble or padded lining.sticky flap is extra strong sticky glue dark liner for no seeing through envelopeFlap is Peel & Self Seal StickyBrand new, no retail package, no tagsB4-A9