Scotch Bubble Mailers are an ideal solution for shipping lightweight items. With an easy , self sealing closure, your item is secured. Although these mailers are lightweight, the bubble cushioning provides protection for your contents. Material keeps contents hidden for safe shipping. Flat surface is easy to write on and ready to add postage. Ideal for use in the home, office, or small business. Great alternative to cardboard. Keep this large package on-hand for your shipping needs. Contains 25 Scotch Bubble Mailers, Size #4, 9.5 in.x 13.5 in.