This is a single brand new Sunlite Bicycle Tube with a Presta (European Style) valve! It is brand new, never used!

IMPORTANT INFO ABOUT BICYCLE TUBES:

This is a quality Kenda Bicycle Tube. Kenda manufactures a very high quality bicycle tube. If you experience a flat soon after the installation of a new tube, it is almost ALWAYS caused by one of two things: (1) Improper installation or (2) Failure to adequately remove the road debris from the tire! Remember, sometimes tiny sharp objects (e.g. thorns, glass, rocks, etc) will lodge in your tire that are almost impossible to see or feel without aggressively manipulating the tire on the inside and outside with your fingers. The object will protrude once under pressure from the tube if you do not find and remove it.