T50 staples are the world's best-selling heavy-duty staple platform. Made to deliver exceptional holding power, these staples are used for all heavy-duty stapling applications. From installing insulation, house wrap, and roofing underlayments to upholstering fine furniture and window treatments. A true workhorse of a fastener, Arrow T50 staples are made to precise specifications on state-of-the-art equipment at the manufacturing plant in Saddle Brook NJ USA. Arrow's 3/8-inch T50 Staples are made of .050 wire with a 3/8-inch crown width and a 3/8-inch leg length. This Industrial Two Pak contains 10,000 of these staples. 5,000 per box