Don't get stuck with a flat! This is a pair of two new bicycle inner tubes from Duro, perfect for road bikes, fixies, or hybrids. The size is 700x35/43C, which also fits 27x1-3/8 wheels. Valve type is Presta with a 60mm length, good for deeper rims. These tubes are brand new in retail packaging, ready to be your spare or immediate replacement. Just match the size to your tire—if your tire says 700x35c or close, these will work. Having a spare tube (or two) in your saddle bag or garage is a lifesaver. Installation is straightforward with tire levers and a pump. Keep your rides rolling without interruption. Whether you're a daily commuter or weekend warrior, these reliable tubes get you back on the road fast. No one likes walking their bike home!