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 from **Trek-Specialized-Giant-Raleigh** Fit 26x1.9, 26x2.1, 26x2.125, 26x2.35 Tires *60 Day Moneyback Guarant