Decided for comfort reasons to upgrade from 23mm tires to 32mm tires. Tried several local bike stores for tubes meant for wider tires with no luck. The biggest advantage to these is that the 23 mm tubes in 32 mm tires leak air much faster. These can go several days without needing to have air added.
The Continental Tour 700 Tube is well constructed and has a nice weight and feel. I've bought some other brands that were very thin and didn't last as long. Fits perfectly in my 700x32 tire and I like that it comes in a Schrader Valve which is what I prefer. Overall, an excellent tube at a reasonable price!
What is there to say, they are tubes, bought 4 of these for two bikes I was fixing up to give away, priced right for sure and no problems with them. BTD got my order to me quick as always, which to me is a plus when buying online.
Installed the tube on new tires purchased at the same time. If you need a refresher on how to install tubes, read the instructions on the website before you damage the tube. I have had the tubes in for over 2 months now and have not need to add air. My tire are 700c x 42mm. I have put on about 100 miles, so not very much. Tube is holding up well and I like the metal stem.