Since most wheels are painted these days, it's easy to damage their finish when removing lug nuts. Especially when using an impact wrench... my tool of choice. These 1/2" drive metal sockets are surrounded with a soft protective plastic that won't allow the metal of the socket to come into contact with the wheel. There is even a plastic insert so it won't hurt the top of the lug nut. Color coded and large size markings make grabbing the correct socket easy. The set contains eight sockets. Four Metric Sockets in 17mm, 19mm, 21mm, and 22mm, and four Inch Sockets in 13/16", 7/8", 1" and 1 1/16". You'll have a socket for any application. Now for the good stuff: the 6" Extension bar has a free-wheeling, spinning sleeve which allows you to steady the socket instead of having it rotate in your hand. P.S. Anyone working in a tire shop should have a set of these. (And if you take your wheels in, take this set with you. You'll thank me later...) The set is nicely made and neatly packaged in its own molded storage case. Imported.