Duck Brand BladeSafe® Tape Gun is a hand-held carton sealing tape dispenser which features a unique retractable blade that protects user from cuts (the blade pops out when pressure is applied to the clear tape pressing wiper). It has antimicrobial product protection on the treated comfort foam handle. Also meets OSHA requirements and has an adjustable tension control knob for smooth tape application. The dispenser ships with one roll of HP 260 high performance 3.1 mil thick packaging tape. The dispenser holds standard packaging tape rolls that come on a 3-inch diameter core. The maximum outside diameter of the rolls it can hold is 5 inches.