Seal: Self Sealing. Size: 6″x9″, 7.5″x10.5″, 9″x12″, 10″x13″, 12″x15.5″, 14.5″x19″, 19″x24″, 24″x24″. 100% recyclable. Outer surface is writable and easily adhere for labeling. Highly opaque for content privacy.