Poly Bubble Mailers Shipping Mailing Padded Bags Envelopes #2 8.5 x 12 White. Condition is “New”. Shipped with USPS First Class. Size: 8.5″ x 12″Color: WhiteUsable Space: 8.5″ x 11″Self-sealing, adhesive and easy to be peeledKeeps your contents secure and tamper-proof. Extremely durable yet lightweight. The poly material helps to save on postage. Pack of 20