Prevent damaging wheels from scratching damage when clamping the wheels inside the clamps.Smooth surface, reduce friction, it is very easy to use. This is a plastic mounting and demounting head with mounting bracket used on many tire changing machines. Using plastic mounting heads is much safer for delicate and expensive wheels, but durable enough to withstand the stress of larger tires and wheels. High strength nylon and plastic construction, quality and performance guaranteed. Features: High strength nylon and plastic construction, quality and performance guaranteed. Using plastic mounting heads is much safer for delicate and expensive wheels, but durable enough to withstand the stress of larger tires and wheels. Prevent damaged wheels from scratch damage when clamping the wheels from the inner clamps. Smooth surface, reduce friction, very easy to use. Specifications: Material: Nylon plastic Colour: black Diameter: 28mm / 1.1" Note: Due to the light and screen setting difference, the product color may be slightly different from the picture. As manual measurement is different, please allow slight differences in size. Shipping Quantity: 1 piece