Team FastEddy Ceramic bearing kits include high quality rubber sealed ceramic bearings, that will outperform any other type of bearing available. Racers know that ceramic bearings have far less friction, roll smoother and faster, as well as run cooler then other types of bearings. If your serious about racing, FastEddy Ceramic bearings are the choice to put you in front of the pack. FastEddy Pre-lubricated no maintenance bearings with our proprietary high heat low friction grease will keep you running faster and longer. Rubber sealed bearings will keep the moisture and contamination out of your bearings allowing them to perform better and longer then other bearings. Kits contain all the bearings needed to replace your old bearings and many kits also contain bushing to bearing upgrades. Kits do not include motor / engine bearings or clutch bearings. All kits come in a reusable FastEddy zip bag. Use all the bearings for building a new kit, rebuild, or toss a new kit in your pit box and use them as needed. Either way we have you back on the track or bashing. You are purchasing the bearing listed above. In many cases the bearing sizes may change depending on your particular model and the date that it was manufactured as well as different hop ups you may have installed. PLEASE DOUBLE cheque you R/C before ordering to make sure you get all the proper bearings. We try to keep the kits updated as best as we can. If you find a variation or mistake in our kits, please contact us so we can look into it.