The Traxxas 8145 Rear Lower Suspension Links (2) are specifically designed for the TRX-4 model, providing a sturdy and reliable connection for the rear suspension of RC vehicles. Made by Traxxas, a trusted brand in the industry, these suspension links are compatible with electric-powered cars and trucks at a 1:10 scale. Whether you're a hobbyist or a seasoned racer, these high-quality suspension links will help ensure smooth and controlled driving performance for your RC vehicle.