Theres nothing worse than using both your patches and sometimes a spare tube on a single ride. With Schwalbes 26in Tubes, you can breathe a little easier knowing you have high-quality rubbers on. Product FeaturesMaterial: RubberSize: 26in MTBValve Type: 40mm Presta, 60mm Presta, 40mm SchraderWeight: [26 x 1.5-2.5in, 60mm Presta valve] 190g; [26 x 0.75-1in, 40mm Presta valve] 60g; [26 x 1.25-1.75in, 40mm Presta valve] 140g; [26 x 1.5-2.5 in, 40mm Presta valve]190g; [26 x 0.75-1in, 40mm Schrader valve] 60g; 26 x 1.25-1.75in, 40mm Schrader valve] 140g; [26 x 1.5-2.5in, 40mm Schrader valve] 190gRecommended Use: Mountain BikingManufacturer Warranty: