Banana Plug Connector: The back of the battery clip accepts a 4mm banana plug connector for electronic lab work and electrical projects. Safety Material: Features a PA insulating shell and nickel-plated steel with clip teeth. The rear banana plug connector is made of brass, ensuring safety and reliability. Easy to Use: The clips are bent at the top and bottom for easy operation and a strong grip, primarily used as wire test clips. Simple Installation: These 600V-1000V/10A insulation test clips have a 20mm opening size. Insert banana plug connectors to connect to corresponding equipment for use. Versatile: Can be used for electrical projects, voltage testers, replacing existing clips on battery chargers, jump starter cables, cars, trucks, and more. Quantity: (2 pcs) Multimeter Alligator Clips (other products not included). Size: Approximately 98 * 15mm (for reference only). Color: Black Red. Note: Please allow for 1-2cm error due to potential color and size differences between the lighting effect image and the actual product.