Review on Continental Bicycle Tubes Race 28 700x20-25 S42 Presta Valve 42mm Bike Tube Super Value Bundle - Pack of 5 Conti Tubes & 2 Conti Tire Levers for Optimal Performance by Omar Malvo

Bought a while ago because of a good offer. It took me forever to get hold of them because I had other spare tubes. All this in 3 days! 1st, flat next morning. 2nd, flat next morning. Other pumped up and placed in my bathtub, I see small bubbles. One of three: 1. Believe the reviews that the quality is going down. 2. Chinese fakes or 3. People abuse the return policy and send their pierced pipes back. I happen to think it's partly 1, mostly 3. I don't know. Revain is in dire need of an overhaul of its returns policy. You'll never get the tubes back, period. People WILL cheat the system and it looks like I got someone's returned junk that was put back into the system. By the way. Leverage is weak, so is weak garbage.