Material: Made of metal, smooth surface, high strength and sturdyDesign: This tyre mount demount design, the arc and length of insertion shape is designed according to the shape of this duck head and the rim edge, easy to useSmooth Surface: Tyre changer head with smooth surface, reduce friction, prevents the tire rim from scratching and damagingApplication: The tire changer mount demount head suitable for tire changing, makes it easier to mount or unmount your tireFeatures: Reasonable angle, with wear resistant protective pad, easy to install. Note: Please ensure the tire bead diameter and wheel diameter match exactly Specification: Material: Metal Size Chart: OptionalInner Diameter 28mm/1.10inch Or 29mm/1.14inch Or 30mm/1.18inch Package Includes: 1 Piece Tyre Changer Mount Demount Duck Head Note: 1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful online shopping!