Feature:Made of good quality material that is durable, wear resistant, and has a long service time.The plunger on this tool is spring-loaded, so once installed, it holds the tire in place while you install it, and you can adjust it slightly by hand.Decreases stress on tools and tires, it is a good tool for removing tires.Specification:Material: PlasticColor: BlackSize: 15.4cm / 6.60"Thickness: 4.8cm / 1.89"Note:Due to manual measurement, please allow 1-2mm error, thanks.Package Includes:4 x Tire Bead Clamp.