1. Material: rubber + plastic 2. Applicable to: automobile, truck, bus, new energy 3. Function: check the status of coolant antifreeze (hot or cold) 4. 6 colorful discs digital representation, easy to read 5. Transparent material, you can easily check your coolant impurities 6. Easy to operate, convenient to use and store when not in use 7. Note: when reading, the sight line should be parallel to the liquid level 8. Length: 26.5cm 9. Weight: 120g