Ball Bearings for Polaris 280 180 Pool Cleaner Robot, C60 C-60 Wheel, 8pcs Size: 2.8*2.8*1.1cm Package includes 8 ball bearings. Stainless steel and plastic ball bearings, corrosion-resistant materials, comparable to the original bearing part, provide smooth rotation and operation of the wheel. Compatible with Polaris pressure washers for pools models 180 and 280. It replaces Pool Cleaner Part C-60 and C60. Before installation, please wear rubber gloves to ensure the safety of your hands. You don't need any tools, just connect the wheel axle to the cleaner wheel. Please confirm whether it matches your machine model before purchasing, so that you can use it better. 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.