Sealed Air bubble mailers. These bubble mailers feature Aircap 3-layer bubble film, which keeps the air in the bubbles longer, and a self-adhesive closure strip. Additionally, these envelopes can save up to 35% on postage costs. These bubble mailers are ideal for shipping CDs, medical and dental products, etc. Paper weight: 79 g/m². Inner dimensions: 330 x 240 mm (H x W). Size: 380 x 261 mm (H x W). Color: white. Quantity: 50 pieces.