Swingline S.F. 13 Heavy-Duty 3/8 inch Leg Staples, 60-Sheet Capacity, 1000/BoxFor use with heavy-duty staplers. Premium heavy-duty staples feature precision chisel points for better piercing ability and less jamming. Compatible with high-capacity heavy-duty staplers only. Staple Type: Heavy-Duty; For Use With: Bostitch 03201, 00540, B310HDS; Boston 73131; GBC 224HXD, 213HD; Rapid HD170; Swingline 113XD, 900XD, 13-16, 390; Leg Length: 3/8"; Sheet Capacity: 60.