WIDE APPLICATION: Distribution connection blocks are well protected for vehicle amplifiers or stereo sound systems, suitable for cars, automobiles, campers, trucks, trailers, UTVs, boats, boats, etc. EASY INSTALLATION: Just put in the wire, tighten the set screw and the wire will not come loose, done! 2pcs Amp grounding distributors are sufficient for daily use. PROTECTIVE COVER: The 12V ground distribution block with snap-on plastic cover, strong and unbreakable, covers exposed contacts, waterproof, dustproof, and prevents accidental contact. The high-temperature polycarbonate base and cover provide insulation protection. Keeps you and your equipment safe!. HIGH PERFORMANCE: The interior of the car audio amplifier power distribution block is made of zinc alloy, eliminating the possibility of corrosion, rust, oxidation, or premature wear of the speaker wire connection points. Provides low resistance, high current capability, and maximum power transfer. 2 WAY DISTRIBUTION BLOCK: 1 x 0/2/4 Gauge AWG In, input hole 0.5in; 2 x 4/6/8 Gauge AWG Out, output hole 0.39in. Linkstyle power distribution block is excellent for managing wires and distributing power! Keep your wires neatly organized!.