• Soft material: The guitar strap blocks are made of rubber, they are lightweight and soft, do not break easily and are durable, protecting your guitar. • Standard size: Suitable for most strap buttons, no need to drill or screw, just slide over existing buttons. • Guitar protector: A must-have accessory to protect the guitar in simple ways. • Reliable and hassle-free: No mechanical tools needed, saves time and energy. • Widely used: Strap lock suitable for acoustic guitars, electric guitars, and basses.