Quality material: Crafted from quality iron, these car battery pile head repair tools are designed to wear resistant and sturdy, ensuring they remain sturdy and deformed for long term use Versatile design: These battery welding tools feature a multifunctional design, making them ideal for repairing car battery terminal posts and connector efficiently Nice fit: With a compact structure and lightweight design, the car battery model connector have diameters of 1.6 cm/0.63 inch and 1.8 cm/0.71 inch, making them easy to store and use Wide application: Great for repairing, maintaining, or replacing old or damaged parts, these battery maintenance supplies are suitable for a variety of automotive battery repair needs Complete set included: The battery terminal repair kit comes with 1 pair of maintenance tools (positive and negative), providing everything you need for effective battery terminal repairs Specification: Material: Iron Size Chart: Negative Inner Diameter 1.6cm/0.63inch Positive Inner Diameter 1.8cm/0.71inch Package Includes: 2 Car Battery Pile Head Repair Tools(and -) Note: Please allow slightly errors 1-2cm differences due to manual measurement.