D'Addario Flex Lock Strap Blocks offer a stress - free strap locking solution for guitar players who prefer not to alter their existing end pins. Just slide these blocks over your current strap buttons, and you're all set. Crafted from flexible and long - lasting rubber, they guarantee a tight connection. These blocks are a great fit for most manufacturer end pins on the market and come in convenient black 4 - packs. They draw inspiration from the classic Grolsch bottle cap strap lock design. Key features include a set of 4 blocks, wide compatibility with most end pins, no need for guitar modifications, and a secure snap - on fit for any guitar strap.

Using these D'Addario Flex Lock Strap Blocks is a breeze. First, find the existing strap buttons on your guitar. Then, simply slip the Flex Lock Strap Blocks over them. They should fit snugly, giving you a secure connection for your guitar strap. As for maintenance, it's pretty straightforward. Since they're made of rubber, you can clean them with a mild soap and water solution. Just make sure to dry them thoroughly before putting them back on. When not in use, store them in a cool, dry place. One important thing to note is that while they're compatible with most end pins, it's a good idea to double - check the fit on your guitar before using them for a performance. If you find that they're not fitting properly, don't force them as it might damage the blocks or your guitar's end pins.