These Arrow T50 5/16 In. staples with 1250 staples/pack can be used for all heavy duty stapling applications: from installing insulation, furniture wrapping and roof underlayers to upholstery fine furniture, installing window decorations and crafting craft。These staples are designed for use with arrow guns, pneumatic tools and hammer guns, including T50 stapler, 5700 Powershot Stapler and staple gun, PT50 Pneumatic Stapler, HT50 Professional hammer gun, etc。They have precision points that allow them to penetrate deep into the substrate, ensuring firm, durable retention when nailed to wood, fabric, carpet or other materials.