1. Motorcycle digital tachometer and voltage display Combo 2. Iron shell 6 chromium electroplating, lasting light, not color 3. Shell is made of metal products, better waterproof effect 4. Products of excellent workmanship, stable quality, long life 5. For a wide range of all kinds of motorcycle performance, simple and convenient installation 6. It is a necessary equipment which can help you to know the tachometer condition