Made by Fiberbuilt, these cases are designed for shipping prints, for example back and forth to galleries and competitions. They do not need to be boxed up, they are designed to go as-is. They are made of very sturdy fiberboard with metal reinforced corners and strong straps to hold it closed. They hold up to 16 x 20" prints. New they cost over $300 each. The pair is yours for $120 + shipping.