The Surebonder Triggerfire Staple Gun features one-handed operation, ideal for canvas stretching. Plastic body. Non-slip handle helps users direct the staples to their exact location. Can be used as a regular stapler. Kit includes 720 staples (1/4", 5/16", 3/8", and 1/2"). - Surebonder Triggerfire Staple Gun KitSurebonder Triggerfire, STAPLE GUN 720 STPLS -