However I used it on my older truck and trailer tires as it had a numbered plastic insert instead of a metal insert. I do not want it. So I gifted it to my youngest daughter for Yukon tires. She likes it because it's easy to use and the font is bigger so the readings are easier to read. So I think it's worth the money. I would just prefer the metal insert as it will last longer and withstand more abuse as I am a truck driver and will do a lot more good.