The Dual Function Extension ATV Motorcycle Adapter Plastic Cover is an accessory designed for use with wheel balancers. It is made of plastic and features a dual function design that allows for balancing both ATV and motorcycle wheels. The adapter extension allows for the wheel to be held securely in place while the wheel balancer performs its task. The plastic cover provides added protection and stability to the wheel during the balancing process. This adapter and cover help ensure the accurate and efficient balancing of ATV and motorcycle wheels.