Welcome to our store! Easy to install: The guitar protector block is easy to install, without any tools, and it is made of silicone, which is soft and lightweight to protect your guitar. Large quantity: there are 12 classic black color guitar strap locks, convenient and easy to replace for your old or original strap locks Reliable and hassle-free: no mechanical tools required necessary to break or wear out, this rubber strap block can definitely save your time and energy, it's a must-have accessory for most guitar enthusiasts. Standard size: the guitar protector locks fit most knobs, no drilling, no screwing and no need to replace existing knobs on your guitar, just slip on the existing knobs and the strap is securely attached Perfect With Your Guitar: Simple style but sturdy, durable material and low profile, noiseless, this guitar locking block fits snugly and grabs your strap ends without snagging or snapping Due to manual measurement, the products you receive may have some dimensional errors Due to different monitors, the products you receive may be slightly different from the pictures Actual delivery quantity: 12 piece 100% satisfaction - Our customers are our priority. If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We do our best to provide you with satisfactory after-sales service.