315 proudly introduces our newest budget friendly bass knob. Made out aluminum alloy will you be ready to unleash the bass? Our knobs include one of the smoothest potentiometers in the field today with 24 inch high quality tiffany style RCAs. available in multiple colors. Not to big not to small our knob fits perfectly in the hand for complete control of your bass. Please allow 5 to 7 business days to ship.