The Traxxas Ball Bearings are designed for RC vehicles, specifically compatible with Traxxas models. Made with black rubber sealed bearings measuring 20x27x4mm, these high-quality bearings are essential for smooth and efficient performance of RC cars, trucks, or motorcycles. Manufactured in Taiwan, these bearings are durable and reliable for hobbyists looking to maintain or upgrade their vehicles for optimal performance. Perfect for enthusiasts looking for precision and quality in their RC vehicle parts.