Surebonder 44038 Heavy Duty, Wide Crown, Swingline Type Staple with 3/8-Inch Leg Length, 1000-Pack 3/8-Inch Staples Wide Crown-.504-inch Fits Surebonder All in 1 - 5650 Fits other brands such as Powerfast, Swingline/Desa Staplers 1000 per box