Features: Upgrade your RC car, and help to improve its performance. Increase overall performance and durability of your RC car. Made of high quality metal material, anti-rust, wear-resistant and durable. Easy and convenient to install and remove, Nice replacement for the old one. Very suitable for Axial SCX24 1/24 RC Car, carefully welding, precise hole position, complete functions. Specifications: Material: Brass Color: Black+Gold Brass Counterweight Size: Front and Rear Axle Size:52.6mm/2inch Inner Hole Diameter Size:3mm/0.11inch Diameter Size:15mm/0.59inch Height:4mm/0.16inch Package Includes: 4 Pieces Brass Counterweights 1 Set of Widened Axle Set（Include Front and Rear Axle x4; Nut X4; Bolt X4; Screw X4; O Ring X4; Lengthened Aluminum Ring X4, Counterweight Brass X4 ） note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the different monitor and light effect,the actual color maybe a slight different from the picture color.