Replacement service wheel for Spinshot tennis ball machines

Replacement service wheel for all Spinshot ball machine models. The service wheels are the black rubber wheels that propel the tennis balls out of the machine.

Wheels sold separately. Price is for one wheel.

When do I need to replace the Service Wheels?
The service wheel may need to be replaced if the surface has become too smooth and is not gripping the balls. You will notice a decreased ball speed if the service wheels have become too slippery.