Material Made of 45 gauge steel for hardness and toughness. Built to resist deformation for long life. The spiral design provides smoother, easier operation and reduced effort. Universal compatibility Brake piston rewind tool designed for rear calipers and suitable for most cars. Please verify that the product size specification matches your vehicle before . Function Acts to push back the brake piston, enabling pad/plate replacement and piston reset when installing pads. Supports efficient brake maintenance and proper piston seating. Easy to use and store Removable handle and round pads that can be used on either side. Compact design allows storage in a small tool box and convenient car carry for onthego use. Applications Replacing rear brake pads on a wide range of cars by retracting the rear caliper piston. Resetting the piston after pad installation to ensure correct seating and brake performance. Maintaining a portable brake service kit for roadside or use.