Description: High quality inner tube with presta valves ( french valve). High puncture resistance. Tube, 700 x 18/23C. High air pressure retention. Quality precision made valves. Replacement inner tube for a hybrid, comfort bike or other bicycle with the same tire size. Specification: Material: Rubber Package Size: approx. 100 x 75 x 35mm/3.9 x 3 x 1.4inch Package Includes: 1 Piece Bicycle Inner Tube
