200 Pack Metallic Padded Bubble Mailers 9"(W) x 11.5"(L) Purple Usable Dimensions: 8 x 11.25. Color: Purple, Paper Liner: White. Provides excellent protection during shipments. Aluminum Foil with Bubble Lining, Bubble Lining: 3/16. Approved by UPS, FedEx, and USPS.