Hipshot Hipshot GB7 Bass Extender Key Gotoh Black<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Allows you to drop-tune your bassAdds range from E to Low C </span></li><li><span class="a-list-item"> It makes your bass tunable from E to Low C </span></li><li><span class="a-list-item"> Installation instructions and mounting hardware included </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/319H1Ts03xL.jpg" noproxy>