12 1/2 x 19″ Kraft (25 Pack) #6 Self-Seal Padded Mailers. Fiber padding expands as package is handled absorbing shock and protecting contents from damage. Mailers feature peel and seal closure. End flaps are coated with a natural rubber adhesive that only adheres to itself and keeps contents secure during shipping. Bags are both moisture and puncture resistant. No additional cushioning needed.