Hipshot Freerange Xtender

I am selling my Hipshot Freerange Xtender. I have tested it but I don’t need it. Tested with metal core strings and it keeps intonation well. I managed dropping to low B and even low A, does the job. 
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Instantly Drop tune your upright bass with a quick flip of a lever! The FreeRange™ Xtender™ attaches between the tailpiece and bridge of your steel string upright bass. With its impressive range, drop as low as A. Use the FreeRange™ Xtende™ on multiple strings to instantly flip from bass to cello tuning!