Eastern 700c Tube - Presta

Tube

Works like it should - goes in the tire and inflates. This one was for backup though.

Holding air, what more do you want?

I'm using two of these on a hybrid and so far they are just fine. Note, however, that they don't come with powder applied as do some tubes. To reduce the chance that they will bind during installation, it's a good idea to use some talc.

Good quality tube

The tube seems to be well made and the walls are reinforced.