: Our bicycle inner tubes fit most road bikes with 700 x 35c, 700 x 38c, 700 x 40c or 700 x 43c tires.Valve type and length: valve; 48 mm (1.89 inches) with spool cap. Wheel size: 700cDurability: Our bicycle inner tubes are made of high-quality material, which reduces flat heels and has a life than ordinary bicycle inner tubes.High-quality rim tape: It is made of high-quality environmentally friendly material to protect the inner tube bicycle from flat feet caused by punctures.colour:Black+redMaterial:Butyl rubberPackage Contents:2 x Bike Inner Tube2 x Rim StripOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.