Features: and high quality Stable and powerful Rugged and durable, not easily damaged Wiring is convenient, and the connection is firm Fit for most car, boat, van battery Dust-proof transparent There are 4 wiring outlets for easy modification of wiring. Clearly Marked with (+) Positive or (-) Negative for Easy Polarity Made of zinc alloy, and the surface is nickel-plated to prevent oxidation The pile head will not break, corrosion resistance, can reduce the voltage distortion and the current transmission loss Positive Negative Terminal: Positive (19mm) Battery Terminal Connector + Negative (17mm) Battery Terminal Connector. Specification: 2/4/8/10 Gauge: There are four different sizes of a wiring outlet for 2/4/8/10 Gauge Inputs (NOTE: Please do not over tighten the terminals bolts, otherwise it will cause breakage) Color: silver+gold Material: Alloy Package Contents: 1Set Car Battery Terminal Connectors 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.