Package Contents: 8 x Ball Bearings (C60); 3 x C10C-10 Spare Tire; 5 x 9-100-3105 91003105 High Density Sweep Pipe Cleaner C10/C-10 Pneumatic: Easy to install, can work independently, replace damaged pool cleaner tires in time HIGH QUALITY BALL BEARINGS: Made of high quality stainless steel balls and plastic combination bearings and well tested by the manufacturer Sweep Pipe Scrubber: Made of high density, water resistant, good flexibility and repeatability, high rebound, installs in seconds Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.