Easy to install: guitar protector block is easy to install with no tools needed, and it is made of High-quality materials, soft and , good to protect your guitar quantity: there are 24 pieces guitar strap locks in chromatic, convenient and easy to replace your old strap locks Reliable and hassle-free: no mechanical tools are needed to break or wear out, this rubber guitar strap block surely can save your time and energy, it is a must guitar accessory for most guitar lovers Standard size: guitar protector locks are suitable for most strap buttons, no drilling, no screwing and no need to replace existing strap buttons on your guitar, just over the existing strap buttons, and strap locked securely in place Good match with your guitar: simple style but sturdy material, durable and low profile, noise-free, this guitar locks block fits snugly and grab your strap ends without binding or clattering size: single size .2.5 x 2.5 x 0.3cm Material: rubber colour: As Shown Package Contents: 24 x Guitar Strap Locks Blocks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.