Gaadi Inner tube. Features: Special inner tube, with 2 ends 100% tested for air tightness Very easy and quick to attach, without dismantling the wheel Specifications: Color: black Inch size: 28 inch ETRTO size: 32/37 - 622/635 French size: 700 x 32/35c Type Valve: French Valve (FV) Valve length: 47 mm