Review on Revolutionary Colby Valve Permanent Stem Replacement - Effortless Installation from Outside the Wheel! by Marcus Munoz

I had a broken valve stem and needed to replace it. I called everyone around and asked what the current price for the replacement was because I couldn't put it back on the bead. I was told somewhere between $30 and $50. Luckily I had heard about this product a few weeks earlier and seen some good reviews. I gave it a try because it would only cost about $30 for two. Pulled the bar out of my tire and dropped the bulb in. I cleaned, tightened and aired the mating surface. A few months later, he's still holding his breath. No leakage from or around the valve stem. Paid ok. same price as elsewhere and I still have a spare valve stem in my glove box. I have a project car that I'm working on and when it comes time to buy tires I won't even bother with traditional tires. I'll just buy them for all 4.