Bosal's Moldable Batting is a unique design that is heat activated. Ideally, this Heat Activated Moldable Batting is used with the Tabletop Tannenbaums Pattern but can be used in other projects. Unlike other battings, Bosals' cuts easily, doesn't fray, is mold and mildew resistant, and is machine washable. Each pack includes one 18" by 45" piece of 100% polyester batting.