The T50 genuine Arrow staples are made in the united states from quality stainless steel, ensuring your stapling is precise, strong and long-lasting first time, every time. Available in 6 mm (¼ inch), 8 mm (5/16 inch), 10 mm (3/8 inch) and 12 mm (1/2 inch) size in 1000. Also available in steel and monel materials. Quality stainless steel material for long-lasting durabilityAvailable in 6 mm, 8 mm, 10 mm and 12 mm lengthCompatible with the Arrow T50 heavy duty staple gun and other brandsStainless steelMade in the USAMade of stainless steelFlat crown type10 mm (3/8 inch) width stapleCarded