30T/10T Steel Drive: Made of chromium/steel, stronger and more durable, these replacement gears are for upgrading your remote control car. Easy to use and easy to replace, they are essential replacement parts for your RC model accessory. Upgrade to Spiral Teeth: Replace the original stock gears with these spiral teeth for a better fit in your remote control car. Made of chromium/steel, they are more durable and provide smoother for a more enjoyable driving experience. Crafted from chromium/steel, these replacement gears are designed to last. Upgrade your remote control car with these spiral teeth for improved performance and durability. Easy to install and replace, they are the accessories for any RC enthusiast. Durable and Reliable: Made of top- chromium/steel, these replacement gears offer strength and longevity. Upgrade your remote control car with these spiral teeth for a smoother and more efficient driving experience. for replacing worn-out gears and improving performance. Spiral Teeth : Enhance the performance of your remote control car with these replacement gears. Made of chromium/steel, they are stronger and more durable than the original stock gears. Easy to install and replace, they are essential accessories for any RC model enthusiast