Features Lightweight & Compact Design: Easy to carry and store, this handheld refractometer is perfect for various liquid samples, making it ideal for home and professional use High-Definition Clarity: Featuring an imported prism and high-definition eyepieces, this ethylene glycol concentration meter provides clear readings for effortless operation Comfortable Grip & Control: The non-slip rubber sleeve ensures a stable hold, allowing you to maintain precise control while measuring battery fluid content Durable Construction: Made from aluminum alloy and rubber, this ethylene glycol refractometer is built for long-lasting use, ensuring reliability in demanding environments Wide Measurement Range: With high accuracy and convenience, this concentration tester allows you to measure liquid content to a high standard, meeting diverse application needs Features: 1、 Material: The battery clip is sheathed in PVC, and the main body is treated with steel plated brass, which is well？chosen and guaranteed. 2、Wide Applications: 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 jump starter cable. 3、Easy to Use: The opening size of the car battery clamp is about 20mm, the handle with grooves is not easy to slip, simple and convenient to use. 4、5 Sets in Total: There are 5 sets of heavy duty battery safety clamp in the package, enough for you to replace. Each set has a red and black clip, the different colors are easy to distinguish. 5、Outstanding Performance: The battery charger clamp with 100A rated current, which is safe and reliable to use. Small size and light weight make installation simple and convenient. Specification: Item Type: Battery Clamp Material: Steel + PVC Application: For various electrical projects, voltage tester, suitable for all car and truck batteries. Replace the existing clip on the battery charger for the jump starter cable. Rated Current: 100A Opening Size: Approx. 20mm/0.8in Package List: 5 x Red Battery Clamp 5 x Black Battery Clamp Package List 5 x Red Battery Clamp 5 x Black Battery Clamp