2,000 staples per box 110-150 sheets of 20lb paper Heavy Duty Staples Made In Italy. Staple sizes are as follows: 10/9 3/8 20-45 sheets 5m 10/11 7/16 40-70 sheets 5m 10/13 1/2 60-100 sheets 5m 10/15 5/8 90-130 sheets 5m 10/17 11/16 110-150 sheets 2m 10/20 3/4 130-170 sheets 2m 10/24 15/16 150-200 sheets 2m