Versatile Gauge Compatibility: Our terminal connectors feature two 0/4 gauge inputs and two 8/10 gauge inputs, making them compatible with a wide range of wire sizes and vehicle models Enhanced Conductivity and Corrosion Resistance: our battery terminals provide strong electrical conductivity, super corrosion resistance, reduced current transmission loss, and protection against post corrosion for long battery life Easy to Use: Our connectors are designed for reliability, with screws that establish strong, secure connections that will remain steadfast over time Positive & Negative: Our adjustable copper spacers allow for flexible connections when the tapered posts are not large enough. The shims indicate negative when in the terminal and positive when not Note: Please confirm the tapered post size before purchasing. Our connectors only work with standard top post tapered terminals, NOT JIS Pensil Post, which are visibly narrower at 13.1mm for negative posts and 14.7mm for positive posts Colour:Photo Color Material:Zinc Alloy Package Contents: 1set x Battery Terminals Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.