Description: This is a stainless steel tire changer mount demount duck head tool with diameter 30mm. With optimal tire change angle and smooth surface, it is a great tool for help you change tires fast and easily. Features: Brand new mount demount duck head tool used for many tire changer machines. The insert shape is designed according to the shape of the duck head and the edge of rim, easy to use. With smooth surface to reduce friction, make the tire change more faster and efficient. It prevents wheels from scratching and damaging when clamping wheels from inside clamps. Made of high quality stainless steel material, high strength and durable. Specifications: Condition: 100% brand new Material : stainless steel Color: silver + yellow Installing Hole Diameter: 30mm / 1.2in Overall Size: 17.7 * 8.5cm / 6.9 * 3.3in Package Weight: 751g Package List: 1 * Tire Changer Mount/Demount Tool Notes: 1. Please kindly check the dimension and pictures to make sure perfectly fit your machine. 2. It is easy to install, but professional installation is always recommended.