Features: This steel mount and demount head comes with a mounting rubber pad designed for use on various tire changer machines. It helps prevent scratches and damage to wheels when clamping from inside with internal clamps. Durable and reusable, it offers stable performance and high efficiency. Suitable for mini cars, electric cars, motorcycles, go-karts, and similar vehicles. Compatible with wheels typically ranging from 6 to 13 inches in diameter. Made from precision steel casting with smooth surfaces to reduce friction, ensuring easy operation. Specifications: Material: Steel Diameter: 28mm (1.1"), 29mm (1.14"), 30mm (1.18") Package Includes: 1 Set Tire Machine Duck Head Note: Please allow 1mm error due to manual measurement. The actual color may vary slightly due to differences in monitor displays.