Swingline S.F. 13 Heavy-Duty 3/4 inch Leg Staples, 160-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: GBC 224XHD, 390, 415; Swingline 900XD; Leg Length: 3/4"; Sheet Capacity: 160.