7" x 6.75" Purple Metallic Bubble Mailers Padded Self Seal Mailing Envelopes Pack of 250 Usable Dimensions: 6 x "6.5. 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.