Review on Continental Presta Valve Black 25 32Cc by Sherman Lancaster

My bike has 27" x 1-1/8" tires and inner tubes need to be replaced. It's an old bike with outdated tires (but still runs) and I wanted a nice set of inner tubes that would fit the right tires in the future. My first choice was Schrader valves, but Continental offered a good future replacement tire with matching tubes with Presta valves. I was having trouble converting from English to Metric units and ended up with a 700 x 28c tube. My theory is that the tube has to match the tire so Continental will be my new standard for tubes and tires with Presta valve options as Continental seem to have more options for this valve on their tubes.