400 EcoSwift Size #2 8.5x12 Medium Poly Bubble Mailers Padded Envelope Shipping Supply Bags 8.5 x 12 inches Size: #2 Dimensions: 8.5" x 12" Usable Space: 8.5" x 11" EcoSwift self-sealing with strong seams, fins on two sides, and seamless bottom for maximum protection Quantity: 400