Stanley TRA708-5C 1/2-Inch Heavy Duty Staples, 5000 Units Stanley - Black & Decker Stanley - Black & Decker High Quality New!!!!!!! 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