The Tape Tearer is the only tape dispenser that can dispense any 50 mm (2") tape, from masking, packing, to super tough duct tapes and backed tapes. The key is the adjustable spool that keeps the tape close against the cutter throughout the use of the whole roll, and gives the ability to dispense much larger rolls. The blade guard protects your hands and also helps place the tape onto the box or envelope. It can hang on your belt or fit in your tool kit. The Tape Tearer alos works for 75 mm (3") core rolls of tape. Part number 70001.