Features: This is a plastic mount and demount head with mounting bracket used on many tire changer machines.Using plastic mount heads is much safer for delicate and expensive wheels yet durable enough to withstand the stress of larger tires and wheels.Prevent damaging wheels from scratching damaging when clamping wheels from inside clamps.Construction with high strength plastic and iron material, quality and performance guaranteed.Smooth surface, reduces friction, it is very easy to use.Specifications: Material: Plastic and Iron Color: Black Size(L x W): 20 x 11cm or 7.8" x 4.3" Installing Hole Diameter: 28mm or 1.1", 30mm or 1.18" (optional) Package Weight: Approx. 500-508g Package Included: 1 x Tire Changer Plastic and Iron Mount Demount Duck Head Notes: 1. Please check our photos with measurements to make sure it fits your machines. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 3.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.4.Please note that the product is suitable for left-hand drive only.. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.