Specifications: Material of Buttons: Copper Pliers Length:145mm/ 5.71" . Metal Prong Buckle: approx. 6.5 mm in inside diameter, 9.5 mm/ 0.37" in outside diameter, 3 mm in barrel length. Features: Use to set eyelets in fabrics, plastic, rubber, canvas and cardboard. Heavy duty, spring-tension pliers for quick action open and release. Non-slip grip rubber handles for comfort, control and reduced hand fatigue. Wide Usages: The snap kit can be widely applied for clothing or leathers; It is suitable for shoes, clothing, shoelaces, DIY crafts projects, canvas, tarps, tents, awnings, and other cloth-made items. Perfect for diy crafts making clothes.such as T-shirts, hats, baby jumpsuits.backpacks Children's saliva Packing include: 100 Pcs Solid Snaps 100 Pcs Hollow Snaps 1 Pcs Punch 1 Pcs Pliers 2 Pcs Rubber tips 1 Pcs Storage box 1 Pcs Instructions NOTES: Before using, if you are not sure how to use it, please use a piece of fabric or other test products for trial use.