[Product attributes]: positive electrode 17.5mm, negative electrode 15.9mm. [Wiring Size]: Wire diameter 5.2-7.4mm (AWG 1-4 specifications) or 16-35mm^2 Sturdy and Durable: Pure copper quick release battery terminals not only have good conductivity and corrosion resistance, but also reduce voltage distortion and transmission loss, and work3 times faster than other conventional caps. Easy to Use: The battery terminal connector makes it easy to identify the positive (red) and negative (black) labels. Comes with 1 hex key and two anti-corrosion washers for easy installation. Wiring iseasy to change and the connection is firm. Press the lever to connect the battery to the battery terminals, so no tools are needed. 【Battery Terminals】The SAE battery terminal connector has 3 terminals. Designed for multi-wire connections, mainly used for SAE/JIS TYPE A rear car batteries. Widely Used: Our battery terminal connectors are suitable for cars, vans, RVs, caravans, trucks, marine batteries and