Review on 🚲 TAC 9 Bicycle Inner Tube, 700c x 28-35 (27 x 1-1/8-1-1/4) Regular Schrader Valve, 32mm (ISO/ETRTO 622/630) - One or Two Pack Bundle: Choose the Perfect Option for Your Bike! by Profit Gilley

2 tubes per pack. Installed a tube and it took about a week. I took it apart, patched it, installed it and as I walked away from the bike I heard the tube burst and the tire come off causing another hole about 1 inch away from the patch I had just installed. I installed another brand new camera and the same script, and one day, without even riding my bike, I walked away and heard the pipe burst. Eventually I took the tubes and rim to the bike shop thinking there might be something wrong with the rim. It was like the spoke was sticking out too far because the holes happened in the same place. The owner of the bike said it was a cheap tube so I bought a new tube from him and have had no problems so far.