Instantly Drop tune your upright bass with a quick flip of a lever! The FreeRange Xtender (pat. pend) attaches between the tailpiece and bridge of your steel string upright bass. With its impressive range, drop as low as A. Use multiple FreeRange Xtenders to instantly flip from bass to cello tuning!
Warning: This product can expose you to chemicals including nickel compounds, which are known to the State of California to cause cancer. For more information go to