This M10 High Current Terminal Stud with 4 black bolt connections and distribution block is made of ABS, zinc alloy, and brass. Its insulated base prevents voltage leaks, shields electronics from stray currents, and is easy to mount. Suitable for RVs, marine, boats, and more. Features 1. These bases are stronger, less affected by extreme temperatures, and more resistant to chemicals than basic nylon or plastic. 2. This stud's fully insulated base prevents any voltage leaks to your vehicle or hull and shields your electronics from stray currents in "hot harbors". 3. Applicable to RVs, marine, boats, etc. 4. Easy to mount and terminate multiple cables securely to source, helps keep wiring neat. Specification Material: ABS, Zinc Alloy, Brass Color: Black Size: 1956cm Weight: 210g Package Include: 1 M10 High Current Terminal Stud