Straplocks? Donﾒt use them? Well, let us tell you (from bitter experience) that theyﾒre officially brill, and can save you a load of tears after your pride and joy has dropped off your strap and bounced off the floor, with a big dent in the now-seriously cracked shiny lacquer... not good.Grover Strap Locks feature the -quick releaseﾒ mechanism players want and need. This strong yet lightweight accessory provides security along with the ability to easily remove the strap for use on another instrument or storage.