Arrow Fastener T27 Household Staple Gun Durable, hi-impact plastic housing All steel channel and track for non-wearing, jam proof performance Safety handle lock Loads 100 JT-21 staples only Uses JT-21 1/4-Inch (2750-0453), 5/16-Inch (2750-0479) and JT21/T27 3/8-Inch staples