Feature 1Durable Material: Car battery terminal is made of zinc alloy material, with good electrical conductivity, easy wiring and strong connection. 2Quick Release: Automotive battery connector allows quick disassembly for charging and storage of your marine or vehicle batteries. 3Negative and Positive: The kit includes 3pcs terminals. Positive terminal ID is 17mm/0.67in, negative terminal ID is 16mm/0.63in. 4Simple to Operate: Battery clamps connector is convenient to install and use, really useful and practical tool for automobile repairing. 5Wide Application: Battery pile head can be widely applied for car, vehicle, RV and boat, which have a standard top post battery.SpecificationItem Type:BatteryCableTerminalMaterial: Zinc AlloySize: Positive inner diameter: 17mm/0.67in, negative inner diameter: 16mm/0.63in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List3 x BatteryCableTerminal