Q-Tubes Superlight tubes for lightweight high performance featuring removable valves and .76mm wall thickness with Q-Tubes reliability Features: Q-Tubes Superlight packaging features environmentally friendly soy ink printing on recycled cardboard Master Cartons of Q-Tubes Superlight tubes contain a total of fifty tubes: Five inner cartons of ten individually boxed tubes Specs: ISO Diameter622 / Road / 29" Labeled Size700 x 23-25 ISO Width (mm)25mm ISO Width (mm)24mm Shaft TypeThreaded Wall Thickess.76mm Weight92g ISO Width (mm)23mm ValvePresta Short 32-40mm Substitutes: TU6878