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、Reliable Work: This crocodile clip has 10mm opening size as well as 10A rated current, for firm fixing and stable work. 2、Broad Utility: Widely applied in various electrical project, voltage tester, suitable for all car and truck batteries. 3、Good Material: Consisted of insulated PVC cover, nickel plated brass teeth and brass banana socket, safe and reliable. 4、10Pcs in Pack: There are 10pcs testing clamp in the pack, and the large quantity will satisfy your various work needs. 5、Easy Connection: Designed to have 4mm socket on the tail, both the connection and conversion are very easy to complete. Specification: Item Type: Crocodile Clip Model: J.60049 Material: PVC + Brass Application: Widely used in various electrical projects, voltage tester, suitable for all car and truck batteries. For replacing the existing clip on the battery charger for the jump start cable. The car battery clip is easy to use, portable, lightweight, safe and reliable. Suitable for cars, vehicles, cars, etc. Rated Current: 10A Opening Size: Approx. 10mm / 0.39in Package List: 10 x Crocodile Clip Package List 10 x Crocodile Clip