This is a set of optional short upper arms for Kyosho buggies, and fits the Inferno MP777 buggies. These are the upper arms that attach the top of the front bulkhead to the outer steering blocks. The MP777 has three upper camber link locations that attach to the front steering upright, and to use the inner hole you need these short upper arms. These short arms will also work with the center hole. The long upper arms are required to use the outside hole.