As expected.

As described.

Couldnt get these to seal around the valves on my rims (Alex CXD4s) with Donnelley/Clement USH tires. Tried with o-ring both inside and outside. Wasted literally hours and hours on these valves. Should have just paid the extra 7 - 8 bucks for Stans as I finally gave up and switched to an old pair of stans valves and had immediately better results (still had some minor valve seal issues, but I didnt re-tape after using these stems and I suspect part of it is that these things blew the valve hole out too much).

These mounted easily and had no leak issues at all.

Just got these and threw them on with my new plus size maxxis minions on i35 rims and they fit great, feel super durable, and seal perfectly. 10/10

Used to replace a damaged valve stem on a wheel with a 2 year old tape job. Wheels held air on the first try, no problem. I didnt use the extra o-ring, but I did dip the rubber end in some sealant before installing, which always helps.

These are better than the Stans valve stems. The extra o ring seems to help seal the rim up from air leaks. They also seem physically more robust.

They are very easy to install and I like the o-ring on the outside but to lock it in place

They are inexpensive and they work.

Just what I was looking for and fast delivery.