2 Pack of Prozio Presta Valve 26x1.9/2.35 Mountain Bike Tubes with 32mm Valve stem--Tubes are in a convenient protective bag-- Tubes fit bicycles fromTrek-Specialized-Giant-Raleigh Fit 26x1.9, 26x2.1, 26x2.125, 26x2.35 Tires60 Day The heavy duty plastic bag will help protect just one or both your tubes from irritants in your seat bag or Jersey High quality lightweight Presta tubes made in Taiwan. Valve Stem threaded the entire length. Tubes Fit 26" tires from 1.9 inches wide to 2.35 inches. 60 Day Money Back Guarantee.