【4-Way Battery Terminal】The 6V/12V/24V battery connectors have 4 terminals for wire connection. Designed for multiple cable connections, and wiring is easy and convenient to modify. Battery clamps made of tinned copper, with excellent electrical conductivity and corrosion resistance, which can reduce voltage distortion and transmission loss. 【Positive and Negative】The positive and negative are clearly labeled on the car battery terminals, so you can easily recognize them. Suitable for wire diameters from 5.2 to 7.4 mm (AWG 1 to 4 gauges) or cross-sectional areas from 16 to 35 mm². Minimum wire size 16mm (5/8") Max. wire clamp: 9.5mm/0.37", mini wire clamp: 6.5mm/0.25" Positive inner diameter: 17.5~19.1mm, negative inner diameter: 15.9~17.5mm. 【Easy to Use】The battery connectors are equipped with terminal cleaning brushes, which allows you to quickly clean dirt, debris and corrosion in just one minute. Equipped with a hex wrench that can help you complete the installation more easily