#7 14.25" x 20" White Kraft Mailing Envelopes Padded Bubble Book Mailers Self Adhesive Bag 50 Pieces Color: White, Recyclable: Yes. Paper Liner: White, Low cost Shipping Protection. Usable Dimensions: 14.25 x 19, Outer Size: 15.25 x 19 + 1.57. Lip Size: 1.5 +/- , Bubble Lining: 3/16. Adhesive: Synthetic rubber  Hotmelt,  minimum +/- 1/8.