According to my experience, these tread gauges are a must-have for any car owner. The measurements are incredibly accurate and easy to read, providing precise information on the condition of each tire. The compact design makes them easy to store in the glove compartment or trunk. The only con is that the plastic base does feel a bit flimsy, but it hasn't affected the functionality. Overall, I highly recommend these gauges for anyone who wants to ensure their tires are in top condition.