1DURABLE MATERIAL: Guitar strap locks are made of high strength iron metal, wear resistant, strong load bearing capacity, durable. The surface is treated by electroplating process, with texture, corrosion prevention and rust prevention, which is a good helper to protect the instrument 2NON SLIP: Guitar strap locks have a large disc surface design that make the band less likely to slip off. The appearance is simple and fashionable. Will be matched with your favorite instrument pairing 3UNIFORM AND NON SLIP: Guitar strap locks adopt non slip cone design, force evenly, not easy to fall off, so that the guitar strap is not easy to slip off 4EASY INSTALLATION: Used to replace the original strap pin without any changes to the guitar. Attach the screw to the original screw hole with a screwdriver, then simply pull out the nut and press the strap in. Easy and fast, no damage to your instrument and strap during installation 5SUITABLE INSTRUMENT: Guitar strap locks buttons can be used for folk guitar, electric guitar, electric bass, etc., versatile, useful and practical, perfect for replacement 2 x Guitar Strap Locks