[DL353-2] Pillow ball end short Improved version (2 penetration types)

This is a short version of the aluminum pillow ball end .Five years of trial and error in search of smoothness while maintaining strength and durability.An improved version is now on sale!In particular, the multi-link lower arm requires strength and smoothness, sothe shape of the ball and the surface that supports the ball has been reviewed again, and in order to focus on assembly accuracy, it is assembled manually at the time of inspection.