Feature: 1. SAFE MATERIALS: PA insulating sheath, nickel plated steel for clamping teeth, and the rear banana socket is made of brass, which is safe and reliable. 2. MULTIPURPOSE: Can be used for electrical projects, voltage testers, replacement of existing clips on battery chargers for jumper start cables, for cars, trucks, etc. 3. BANANA SOCKET: The rear of the battery clip can be connected to a 4mm banana plug, suitable for electronic laboratory work and electrical projects. 4. EASY TO USE: Clip has an arc design at the top and bottom of the press, which is easy to use and has a full clamping force, it is mostly used as a wire test clip. 5. SIMPLE INSTALLATION: 600V‑1000V/10A insulation test clamp, 20mm opening size, insert a banana plug and connect to corresponding equipment for use. Specification: Item Type: Insulated Test Clamp Material: Steel, PA, Brass Opening Size: Approx. 20mm/0.78in Model: J.60041 Uses: Widely used in various electrical projects, voltage tester, suitable for all car and truck batteries. Replace the existing clip on the battery charger for the jumper start cable. The car battery clip is easy to use, portable, lightweight, safe and reliable. Suitable for cars, vehicles, cars, etc Basic parameters: Current and Voltage: 600V-1000V/10A. Package List: 1 x Insulated Test Clamp Note: Manual measurement, please allow some errors.