#6 12.5" x 19" Poly Bubble Mailers Shipping Mailing Padded Envelopes Self Seal 12.5x19 50 Bags 2.5 millimeter thickness, Recyclable: Yes. Water Resistant, Lightweight and Padded Interior. Color: White/Grey, Paper Liner: Clear with antistat. Lip Size: 1.5 +/- , Bubble Lining: 3/16. Usable Dimensions: 12.5" x 18", Outer Size: 13.5" x 18" + 1.57".