Muteki SR35 lug nuts are made of steel for the best strength and resistance to fatique. Bolting down your wheels firmly is a true safety issue as much as performance. Make sure you get a quality set of lug nuts like Muteki. These SR35 closed end lugs are black and feature a locking nut for each wheel. Both lug nut sockets and lock socket is included in the kit.
Well constructed. Compliments my ESR SR 12 wheels. Will be adding the RimLoc system to prevent wheel theft.