315 introduces the Designer bass knob. With standard graphics to choose from these are all the rave today. Built with 1/4 inch acrylic these are one of most durable bass knobs in the marketplace today. Standard with single color led, voltmeter, and 2ft tiffany style leads we have squeezed everything into our most popular design. Please allow 5 to 7 business days to ship. Most orders are shipped ahead of schedule.