I like the way they look and they are not cheap, they look great on my scooter that I am remodeling. But I ran into a major problem: They have a small rubber stopper or gasket on the side. I don't really know how it happened but it fell out the inside of the cap and into my valve and when I got out the next day my tire was flat. Wow I wanted to work so happy I had something else to do start when I got home to fix it I decided to fill it with air first and to my surprise this little rubber seal stayed in they stick in my pair of valves