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、Basic Specification: This is special testing clip, which opening size is 20mm, the current and voltage are 30A 3000V 2、Brass+PVC: Made of procing technology, made of brass, PVC material, and not easy to damage 3、Application: Widely used for various electrical projects, voltage tester, suitable for all car and truck batteries. Replace the existing clip on the battery charger for the jump start cable 4、Safe to Use: The car battery clip is easy to use, portable, lightweight, safe and reliable, suitable for cars, vehicles, etc. 5、Rugged Test Clips: The crocodiles clips are securely attached to the wires, ensuring won't slip off during use and won't deform as you use more often Specification: Item Type: Testing Crocodiles Clip Model: 60047 Material: Brass, PVC Uses: Widely used for various electrical projects, voltage tester, suitable for all car and truck batteries. Replace the existing clip on the battery charger for the jump start cable, easy to use, portable, lightweight, safe and reliable. Suitable for cars, vehicles, etc. Opening Size: Approx. 20mm / 0.80in Current and Voltage: 30A 3000V Package List: 1 x Testing Crocodiles Clip (Red) 1 x Testing Crocodiles Clip (Black) 1 x Testing Crocodiles Clip (Yellow) 1 x Testing Crocodiles Clip (Blue) 1 x Testing Crocodiles Clip (Green) Package List 1 x Testing Crocodiles Clip (Red) 1 x Testing Crocodiles Clip (Black) 1 x Testing Crocodiles Clip (Yellow) 1 x Testing Crocodiles Clip (Blue) 1 x Testing Crocodiles Clip (Green)