Description: It can lock strap hole to prevent your strap from falling off. With it, embarrassing moments when strap falls off in stage will not happen to you. Strap lock for electric guitar and bass. Type: Guitar Strap Lock Quantity: 4 Pc Material: Copper Inner Core + Alloy External Diameter: 22.97mm/0.9" (Approx.)     Package included:4 x Guitar Strap Lock