Musiclily Guitar Bass Schaller-Style Security Straplocks Round Head Strap Locks and buttons Straplocks System for Electric Acoustic Guitar Replacement,Chrome (Pack of 10) Schaller style strap lock system, Ideal for guitar strap locking. Fast assembly and Quick & Easy release Easy to install, convenient to use;Color: Chrome They are not genuine Schaller strap lock sytem, also is not compatible with genuine ones. Package includes : 10 units Strap locks