WIDE APPLICATION: The audio splitter distribution block is well-protected for vehicle amplifiers or stereo audio systems, suitable for cars, automobiles, campers, trucks, trailers, UTVs, boats, boats, etc. Also, it's used to combine the ground wires of multiple amplifiers to one ground point. EASY TO USE: The distribution connecting block size 2.76 x 2 x 1.23 in, small and easier to tuck away in tighter install areas. Just put the wire in, tighten the set screw and the wire will not come loose, done! Easy to repair yourself, saving money and time!. BUILT FOR SAFE: The 12V power ground distribution block with snap-on plastic cover, is strong and unbreakable, covering exposed contacts, waterproof, dustproof, and preventing accidental contact. High-temperature polycarbonate base and cover provide insulation and protection. Keeps you and your devices safe!. HIGH PERFORMANCE: The amplifier ground distributor is made of a zinc alloy material that provides excellent conductivity, and maximum power transfer. Also, eliminates the possibility of corrosion, rust, oxidation, or premature wear at speaker wire connection points. Heavy-duty construction for long-term use!. 5 WAY DISTRIBUTION BLOCK: 0 Gauge x 1 input, 2 Gauge x 1 + 4 Gauge x 2 + 8 Gauge x 2 output. Input diameter 0.51in; outlet diameter: 0.41in, 0.35in, 0.24in. Linkstyle 5 in 1 car audio power distribution block allows you to connect up to 5 amplifiers to one power supply. Keep your wires neat and tidy!.