Description:Name: Guitar Strap LocksMaterial: MetalPacking list:Guitar strap buckle x 2Wrench x 1Note:Due to manual measurement, please allow 1-3cm differences, thanks (all measurements are in cm, please note that 1cm=0.39 inches). There may be color difference due to different computers or smartphones, please forgive me! Guitar Strap Locks Set: Security Strap Lock System for Acoustic/Electric/Bass Guitar, Quick Release Mechanism, Metal Strap-lock Buttons with a Wrench. Locks Design: Guitar strap locks design to offer a secure way with no accidental falling when you play your precious guitar/bass standing by replacing the existing strap end-pins with these special strap locks. Package: The pack includes a pair of metal strap locks and a wrench. The strap lock with gold finish is not only beautiful in appearance , but also resistant to rust and corrosion for durable use. Easy to Set Up: The wrench included is to tighten the nut on the strap lock to make sure it won\u2019t get loose. The strap locks are easy to set up according to the instructions included the package. Quick Release: The strap lock with quick release mechanism makes it very easy put on and remove your strap, just pull out the end of the lock, slide to the button to remove/install.