Kyosho MZW412 SP Long King Pin Ball set is designed for use with the MINI-Z Racer MR-03. It allows for adjustment of camber angle and spring preload by enabling the upper arms to be set at an angle.

This set includes suspension limiters that can be used to adjust the amount of suspension movement, upper suspension arm angle, and ground clearance. The limiters can be used in various combinations to achieve the desired effect.

To install the SP Long King Pin Ball set, you will need a Phillips screwdriver.