Upgrade your guitar or bass with the D'Addario Auto-Trim Locking Tuning Machines in sleek black. These tuning machines are designed to provide precise tuning and ensure your strings stay securely in place, without the need for multiple winds around the post. With a 3+3 configuration, these machines are suitable for both guitars and basses. Crafted by one of the most trusted brands in the industry, D'Addario, these tuning machines are made to last. They are easy to install and provide a seamless playing experience, allowing you to focus on making beautiful music. Add these Auto-Trim Locking Tuning Machines to your instrument and enjoy