One of the best-selling clamps in the piano industry for a foolproof, attractive upright and grand piano locking device.

The clamp is made from a special hardened steel and has a rubber sleeve to protect the piano’s finish. Clamp has a maximum opening of 6-1/8″ high, which should fit most any type of fallboard.

A wooden shim is provided for use when installing on pianos with smaller fallboard heights. Comes with a lock and two keys. Screws are provided to attach the clamp underneath the key bed.