Arrow Fastener JT21CM Chrome Junior Tacker Staple Gun Arrow Jt21Cm Tacker Gun, Chrome Arrow Fasteners This product is easy to use and easy to install Light household duty Compact, lightweight Handy for repairing screens, light upholstery, etc. Sturdy all steel construction, all chrome finish; built-in staple remover Uses 1/4-Inch (2750-0453), 5/16-Inch(2750-0479) and 3/8-Inch staples and JT21WS wire and screen attachment