The Traxxas 17x23x4mm Black Rubber Seal Ball Bearings (2pcs) TRA5098A are high-quality bearings designed specifically for RC model vehicles. Made by the reputable brand Traxxas, these bearings are durable and reliable for smooth operation. The black rubber seal adds an extra layer of protection to keep out dirt and debris, ensuring consistent performance during off-road racing or recreational driving. Perfect for maintaining the drivetrain and wheels of your RC vehicle, these bearings are a must-have for any hobbyist looking to upgrade their parts.