Grover "Quick Release Strap Lock"! The Quick Release Strap Lock allows for instant strap attachment and removal by simply removing the original end pin, attaching the dedicated end pin, and attaching the dedicated locking parts to the strap. It also prevents guitar drop accidents during live performances. ■ Finish: Nickel ■ Package Contents: 2 Strap Lock Bodies 2 Dedicated End Pins 2 End Pin Screws 2 Washers 2 Nuts Brand new, unopened. Grover Quick Release Strap Lock Pins *Essential for preventing guitar drop accidents!