Schwalbe inner tube Specifications: Color: black Material: rubber Weight: 174 grams Type of valve: Dunlop valve Valve length: 40 mm Inch size: 24 x 1.50 24 x 1.75 24 x 2.00 24 x 2.10 24 x 2.25 24 x 2.40 ETRTO size: 40-507 47-507 50-507 54-507 57-507 62-507