Puncture Proof, Thorn-Resistant, No-Flat, Bicycle Tube, 700 X 38
PUNCTURE PROOF INNER TUBES. SIZE: 700 x 38c (Orange material is A harder material which better suits larger tire SIZE:s), ETRTO 40-622, RIM Width 18 mm with a tolerance of +/- 1 mm. Follow the SIZE: chart to help choose the SIZE: you need.