2PCS Car Battery Terminal Connectors Quick Release Disconnect Positive Negative Product Feature: 4 Way Battery Terminal: This battery terminal connector has 4 post for wire connection. Designed for multiple cable connections. The provided wrenches make for easy installation. Wiring is easy to modify. Convenient wiring and firm connection. Fits on round post auto batteries SAE/JIS Type A posts. NOTE: Do not overtighten the screws Dimension: For wires diameters 4.1 – 8.2mm (AWG gauges 0 – 16) or section 13.5 – 53.5mm². Minimum wire size: 16mm (5/8"). Max wire clamp: 9.5mm/0.37in, Mini wire clamp: 6.5mm/0.25in. After installing battery, connects to the battery posts by pressing down the lever, so no tools needed Positive & Negative Labeled: Positive (17.0mm-18.2mm) Battery Terminal Connector + Negative (15.9mm-17.2mm) Battery Terminal Connector. The Positive Negative Battery Terminal Clamp is Suitable for Most Battery models. Works great for replacing worn out and corroded terminals Sturdy & Durable: The battery terminals are made of copper, with good electrical conductivity and corrosion resistance, which can reduce voltage distortion and transmission loss Wide Application: These battery terminal connectors can be used for Cars, Vans, Caravan, Motorhomes, Truck Batteries, Car Audio, etc. Just make sure to connect the correct terminal for the correct polarity NOTE: It is not recommended to overtighten the screws. Product Specification: Positive Inner Diameter: Approx. 18.2mm Negative Inner Diameter: Approx. 17.2mm For Wire Diameters: 6.5mm/0.25in Max wire clamp: 9.5mm/0.37in For: For wires diameters 4.1 – 8.2mm (AWG gauges 0 – 16) or section 13.5 – 53.5mm² Fitment: Fit for SAE/JIS A Type Auto Battery Battery Terminal Clamps’ Material: Pure Copper (Screws made of stainless steel) Package Included:  2PCS Quick Release Disconnect Car Battery Terminal