Bostitch B8 PowerCrown Staples, 0.375 Inch Leg, 45 Sheet Capacity, 5,000 Per Box (STCR21153/8) B8 PowerCrown technology allows for stapling of up to 50% more sheets Unique design increases staple strength and reduces effort. Finely honed chisel point tips for better penetration power. Made from the finest quality steel wire. 45 sheet capacity