Pitlock quick release wheel and seatpost locks protect the front wheel, rear wheel, and seatpost. Once installed, the locks remain permanently on your bicycle, even when you ride. When you need to remove your wheels for servicing, your Pitlock key lets you do this quickly and easily. Pitlock locks cannot be removed with tools such as hammers, pliers, picks, universal socket tools, grinders or bolt cutters. Pitlock locks come with a proprietary key that works on all three pieces in the set.