Keeping your wheels or other components secure and safe is paramount, the Pinhead Solid Axle Wheel Locks (pair) will help you do just that. The unique Pinhead key system means that, unlike competitor locks of this type, they cannot be removed with a simple screwdriver. The Convex technology on Pinhead wheel locks protects them from removal by hammer, pliers, picks, universal socket tools, grinders and bolt cutters. Once installed, the solid axle wheel lock remains permanently on your bike, even when you ride. When you need to remove your wheel for servicing, your Pinhead key lets you do this quickly and easily. Pinhead locks use a special coded key that comes with each lockset. The key is ergonomically engineered to install and tighten your locks. Each key is different and comes engraved with a nine-digit code so it can be replaced if lost. With your key code, matching locks can be ordered to protect your other components or other bikes. Features: Protection for: Both Wheel Replaces your existing lock nuts Easy, one-time installation Installed weight: 52g Materials: Precision forged Cro-Mo steel Online lost key replacement available for keys registered with Pinhead Protected by a lifetime warranty