I bought this specifically to access the valve stem on the inner tire on the back of my Ford Dual. The one I had wasn't long enough. It looks good and is well made, but the tail used for the internal valve is not offset and I was unable to install it on the valve. I tried to modify (bend) it to fit and it broke behind the end fitting. Fear not, I reassigned it as an extension to my existing cartridge and I have everything I need to get to the valve. Look carefully at the photo before buying!