This set of 100 disposable pastry bags contains 11 7/8 long bags. The disposable pastry bag serves the same purpose as the conventional pastry bag without the hassle of clean up and maintenance. They come in a boxed roll of 100 and are easily detached with a perforation. They are made of 100% plastic polyethylene and come in five sizes. They are multi-layered for durability and are 100% recyclable. The sides of the bag are reinforced, preventing possible leakage or breakage when working with heavy batters.