This is the Team FastEddy Sealed Bearing Kit for the Traxxas T-Maxx. FastEddy bearing kits include high quality rubber sealed steel bearings, with bearings specific for a particular application. So instead of spending more money than you need picking and choosing a bunch of individual bearings and ending up with leftover bearings you may not need, grab a FastEddy bearing kit and get your rig rolling smooth again. Includes: (7) 5x11x4mm (5) 10X15x4mm (11) 6X12x4mm (6) 5X8x2.5mm (4) 12X18x4mm NOTE: Photo of unpackaged bearings shows random bearings and is not representative of what you will receive. 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 CHECK you R/C before ordering to make sure you get all the proper bearings. FastEddy does their best to keep the kits updated. If you find a variation or mistake in this kit, please contact us.