This is the Clutch Bell, Flywheel, Clutch Shoes & Spring for the Traxxas Nitro Slash20T Steel Clutch Bell (Part # 4120)Clutch Shoes & Spring (Part # 4146)Flywheel Nut (Part # 5244)Flywheel & Magnet-35mm (Part # 6542)Split Beveled Cone (Part # 3281)2 Ball Bearings - 5x11x4mm (Part # 5116)