The Lemforder 4-Piece Control Arm Kit (E85 E86 Z4M) - 459190 is a comprehensive kit of products designed for a specific type of car, the E85 E86 Z4M. This kit includes four essential components, each carefully selected to improve the performance and functionality of the car's control arm system. The contents of the kit include a control arm, a ball joint, a bushing, and a mounting bracket. These parts are vital for maintaining proper suspension and steering control, as well as ensuring a smooth and comfortable ride. This kit is a convenient solution for car owners who need to replace or upgrade their control arm components, as it contains all the necessary parts in one package.