Load your stapler with the right STANLEY TRA708T 1/2" Heavy Duty Staples and you can complete the task at hand. Stock up on this 1,000 pack of staples and you'll never be lost without one again. For heavy-duty stapling jobs such as insulation, carpet under laying and roofing felt. The color-coded packaging makes size and product selection a cinch. The sturdy plastic packaging reduces staple breakage. Fits STANLEY TR100, TR250, TR200 Series, TRE500 Series, PHT150, PHT250, and Arrow T-50. Size=1/2". Crown Width = 27/64".