FeaturesStable and powerful. Rugged and durable, not easily damaged.The pile head will not break, corrosion resistance, can reduce the voltage distortion and the current transmission loss.wiring is convenient, and the connection is firm.Fit for most car, boat, van battery.Clearly Marked with (+) Positive or (-) Negative for Easy Polarity2 copper spacer shims provided in case the posts aren't big enough, also the copper material is more conductive and flexibleThis model is: car battery pile head, made of zinc alloy, and the surface is nickel-plated to prevent oxidation.There are 4 wiring outlets for easy modification of wiring.Dust-proof transparent shellStyle 1: Wiring hole: 2GA, 2GA, 8/10GA, 8/10GAStyle 2: Wiring hole: 0GA, 0GA, 8/10GA, 8/10GA (this one is equipped with a conversion kit)Material: Zinc Alloy Quantity: 2 pcs (Positive & Negative) Package Included: 1 x Negative Terminal1 x Positive Terminal2 x Adjustable Shims2 x Car Battery Terminal Covers