Transform your RC crawler's performance with WPRHJY's brass wheel hex hub extenders. These +5mm adapters are specifically designed for 1/18 scale TRX4M RC crawler cars, offering enhanced stability through a wider stance. Crafted from premium brass material, each set weighs 9.4g and includes 4 wheel hubs with necessary mounting screws. The innovative design combines functionality with style, featuring a sleek, modern appearance that complements your RC vehicle. Installation is straightforward, with the hubs providing a perfect fit for seamless integration. These extenders are an excellent upgrade choice for hobbyists looking to improve their crawler's handling and appearance. The added width not only enhances the vehicle's stability but also gives it a more aggressive, planted stance on challenging terrain.