The MusicNomad Acousti-Lok is a patent-pending strap lock adapter that adds the safety and flexibility of using strap locks to your acoustic guitar without permanently modifying it. Designed to be used with Schaller-style strap locks (not included), the Acousti-Lok features strong, solid brass construction that provides the security you’re after. If you don’t want to use the strap locks, but need a quick and safe way to secure your setup, you can unscrew and reverse the button to use the innovative QuickSecure button that makes it easier to slide your strap over and be held securely in place while you play.