1000-Count 5/16-in Wide-Crown Staples Great for light-duty home stapling jobs, such as kitchen shelf trim, closet lining, screen repair and light upholstery Compatible with the JT21 gun tacker (not included) 5/16" (8mm) leg length Crown width 7/16" (11mm) Arrow 1000-Count 5/16-in Wide-Crown Staples