Product Description Staple Gun, Heavy Duty, Staple Type Flat Crown, Crown Width 3/8 In, Leg Length 1/4, 5/16, 3/8, 1/2, 9/16 In, Staple Capacity 84, Overall Length 7 1/2 In, Overall Height 5 1/4 In, Construction Aircraft Aluminum, Silver with Black Trigger, Patented Anti-Jam Mechanism, For Use With G1415994, G1937327, G1052825, G2483257, G3446353, G2898567, G1450197, 1XHU2, Insulation, Weatherstripping, Carpet Underlayment, Roofing Paper, Window Screens, Shelf Lining, Ceiling Tile From the Manufacturer The easy-squeeze handle of the Stanley TR150HL SharpShooter Heavy Duty Staple Gun reduces hand fatigue. Hi/Lo power lever for hard and soft materials. Heavy duty aircraft-aluminum housing for long-lasting durability. Anti-jam mechanism saves time on the job. Delivers high power and deep penetration. Easy-slide full-stick staple load. Uses Stanley® SharpShooter® TRA700 series or Arrow® T-50® heavy duty staples.