This is the optional titanium M3 / M4 turnbuckle for the lower arm of M1-RAC Rear A arm conversion set , which can be replaced with the genuine iron turnbuckle of the kit standard.
Three types of length are available so that you can select the length according to the preferred setting and the width of the vehicle.
Please use it for replacement, setting change, maintenance, and especially when it is damaged due to a crash.