Purple Hobbies 28mm Purple BladeSaver Thread Cutter. Give your used 28mm rotary blades extended life by using them in the BladeSaver Thread Cutter and make cutting your chain pieced fabric projects fast and easy. Each BladeSaver comes with a magnetic case to keep your thread cutter safe when not in use or when taking it to class. The BladeSaver case doubles as the blade stand to hold your thread cutter securely in place during use. It safely contains your used 28mm rotary blade in a flower shaped holder with 5 places to cut the thread. Detail assembly instructions enclosed. Compatible with all 28mm blades. (Not included). CHK-BSAVER28-PURPLE