The CRL Glass Mounted Slip-On Patch Lock affords ease of installation, removal and security, without the necessity of a permanent patch lock. This lock can be used as a primary lock, but can also be used in conjunction with a floor lock for extra security. Lock is accessed from one side only by keyed cylinder. Removal of Lock during business hours provides a visually aesthetic frameless appearance. Easy slip-on feature means no glass fabrication is required. Lock is provided with three keys. Lock is provided with three keys. Blank keys are available, and can be cut by a locksmith to match existing keys.