This is a very basic piece of gear. It works for its designed purpose. Typically, guitar straps attach to flanged metal buttons on the instrument. For guitars having only one strap button, this item permits attaching one strap end to the headstock area without modifying the guitar in a possibly detrimental way. I would have rated this product five stars if the strap button hardware had been made of metal. Relying on a cheap plastic button to secure a valuable guitar is a bit unsettling. Martin should reconsider their decision to cut costs in this area. Plastic, while not a deal breaker for me, was disappointing. I expected better from Martin.