This is a new style of tube I'm trying out today. I really like the all metal threaded stem. This will prevent the tube from twisting in the rim hole and failing at this point. This has been the failure point of 90% of my flat tires.

These tubes with the sealant in them are awesome! Helps seal small leaks in and around the valve stem and seal right up after punctures! Highly Recommend. I use them in all our families bicycles!

These are great tubes. You can tell the quality is excellent right out of the box. They’re heavy duty. I don’t care about the weight of tires, tubes, etc. I’m an old lady who doesn’t want to have to change a flat on the side of the road. These fit the bill

Very heavy duty tube. Could not find anywhere else.

Just as described. Perfect

I wanted ""desert protection tubes"" but out-of-stock forever. Airlock sealant works no problems, can ride over glass and no leaks. (Only noticed punctures while changing tires, still reusable even with holes and without needing patches) REGARDLESS I never have nor will get a flat. (Only a pinch-flat, when changing tires that are too tight.) Desert protection tubes usually last me 3-years per tube/wheel. (About 2 tire changes) these will be the same. I just prefer 3-levels of protection (armadillo tires, thorn resistant tubes, and air-lock sealant = NOT WORRIED ABOUT WEIGHT, but just being stranded as daily 15+ mile daily commuter)

It's a tube, it does what it's supposed to do... not sure what happened with the other reviewer. Schrader valves have been around forever... bikes, cars and countless other applications... the only negative is the Airlock tubes are less compact when rolled up to take as a spare due to the material inside used to seal a puncture.