hi i have just binned a set of thouse please please make sure that you take the locking nuts off when or if you let some one else work on your car incase they use a nut gun on your wheel nuts it weakens them big time when i got my car it had a set of red alloy wheel nuts and McGard locking nuts 1/2 the alloy nuts are stripped and the lockers are now gone all steel wheel nuts next week i went to take the wheel off and the locking sc**ket just broke when i tried to get them off my mate got all 4 locking wheel nuts off in 5 min you just use an impact sc**ket and a breaker bar shocked me how easy i have been told halfords make a very good set i googled MaGard and others on different forums have had same problems