Clean up your messy wiring and prevent engine noise with this easy to use bus bar/distribution block. Using a 3/4″ PVC Body, a 1/4″ Aluminum Bus bar, 3/16″ Clear Acrylic cover and all Stainless Steel hardware, this high quality product is all you need to install multiple amplifiers (and other 12v Devices) to one central location. Available in both half block (6 ring terminal locations), a “Split Block” (12 Ring terminal locations), or a “Full Block” (14 Ring terminal locations). Can be used as a grounding block or positive distribution. Available in several different colors (see options below) Accepts any ring terminal with 5/16″ Hole Made in California, USA!