Love these, make checking air pressure easy. I have a ride on tractor and four vehicles that I am quite responsible for keeping 20 tires on which is a bit of a chore when the fall and spring weather changes so often here in South Texas. Eliminating the step of removing the valve stem cap, while it sounds trivial, saves a lot of time. Most of the time I only think when I have to go somewhere, and when I've finished inflating the tires I have to wash my hands β not with that, it saves a lot of time.