The all-metal G lock for grands and uprights has the advantage that you can use your own padlock or change the padlock if you lose the keys.
Easy to fit, just four screws to hold the bottom plate to the underside of the keybed. The metal restring arms have a plastic sleeve to protect the finish of the piano.
Fits most grands and uprights with standard fall. Uprights from the 70s with angled falls are not suitable for this type of lock.