Ecolites are premier quality bubble mailers. 100 pieces in a case. These mailers offer superior shipping protection and are still lightweight. They are 1/3 the weight of macerated mailers, reducing postage costs. Golden kraft on the outside and Durabubble on the inside. Three sided protection with 1/2" fins helps absorb shock. Ecolites have a hot-melt self-seal enclosure that keeps contents secure and is tamper-evident. Made in the USA. Fully laminated bubble to kraft gives increased bag strength. The bubble lining is cleaner than macerated paper and leaves no mess when opened.