Stanley TRA704T 1/4-Inch Heavy Duty Staples, Pack of 1000 Box of 1000 staples For heavy duty stapling and tacking jobs Sturdy plastic packaging For heavy duty stapling jobs such as insulation, carpet under laying and roofing felt Color-coded packaging makes size and product selection a cinch Sturdy plastic packaging reduces staple breakage Heavy Duty  Narrow Crown  fits TR100, TR200, TRE500 series, PHT150, PHT250 and Arrow T-50 Limited Lifetime Warranty For heavy duty stapling jobs such as insulation, carpet under laying and roofing felt Color-coded packaging makes size and product selection a cinch Sturdy plastic packaging reduces staple breakage Heavy Duty  Narrow Crown  fits TR100, TR200, TRE500 series, PHT150, PHT250 and Arrow T-50 Limited Lifetime Warranty