Get more from your tires with this Brass made steering knuckle by adding weight exerted onto your tires when compared to the stock plastic items! Easy to remember with etched weight on the side of the knuckle. Features: For: Traxxas TRX-4 Material: Brass Color: Brass Includes: Brass Front Steering Knuckle (2 pcs) Mounting Hardware (1 pack) Source Yeah Racing: http://www.yeahracing.com/catalog/trx4031-brass-front-steering-knuckle-traxxas-trx4-p-4263.html