The Treal Hobby Arrma Typhon and Granite Grom 7075 Aluminum Rear Upper Arm Set is a high-quality upgrade crafted for the Arrma Granite Grom MEGA 4WD 1/18 Monster Truck and the Arrma Typhon Grom 223S BLX 1/18 4WD Buggy. Made from premium 7075 aluminum, these rear upper arms deliver outstanding durability while maintaining a lightweight profile. Precision CNC machining ensures perfect fitment, enhancing the vehicle's overall performance and handling. These arms are available in multiple color options, with an excellent surface finish that not only adds durability but also elevates the visual appeal of your kit.