RC enthusiasts, listen up! If you run an HPI 1/10 scale Bullet ST or MT and want to beef up the drivetrain, this CNC-machined aluminum gearbox is a sweet upgrade. It replaces the stock plastic gearbox housing with a solid billet aluminum one – way more precise and durable, especially if you bash hard or run powerful motors. Helps keep your gears aligned and protected. It's sold individually (just the gearbox housing, not including gears or internals), so you transfer your existing components over. Cool part? It comes anodized in seven different colors (like blue, red, silver, black, etc.), so you can match your rig's theme. Part number is T8694. Installation is straightforward if you're familiar with your Bullet's layout. Definitely a performance and reliability mod that reduces flex and wear. Perfect for racers and bashers who want that extra toughness. Just make sure it's compatible with your specific Bullet model (ST or MT). Give your RC car that premium, custom look and feel while making it tougher on the track or trail.