Arrow Fastener 721168HW Genuine T72 UL Insulated Staples 13/64-Inch by 31/64-Inch Staples, 300-Pack N/A Made in USA For use with Arrow T72, large wire and cable tacker 300 per box Use for electrical wiring applications 31/64-Inch (12mm) Staple Width, 13/64-Inch (12mm) Staple Height UL rated insulated staple Made in the USA Packaging may vary