The 12mm Wheel Hex is a critical component for enhancing the performance of your 1/18 scale 4WD vehicles, such as the Temper. Crafted for durability and precision, this wheel hex ensures a secure fit for the wheels, allowing for improved handling and stability on various terrains. This set includes four wheel hexes, making it suitable for complete vehicle upgrades or replacements. Ideal for hobbyists looking to maintain or enhance their RC car performance.