Check the listing for details. COLBY VALVE EMERGENCY TIRE VALVES 2-PACK - BLACK COLOR (CV-EV10) - BRAND NEW. Condition: New. Listed at 32.20 USD. Valve stems break. Fortunately, Colby Valve built a better valve stem. It installs from the outside of the wheel in about 1 minute, is 20X stronger than standard valves and made in the USA! Your tire valves are probably your vehicle's weakest link. One hard impact and you're in a world of hurt. Don't take the risk. Be prepared with the best valves available: Colby Valves. Why Colby Valves? Our patent pending Colby Valves are hands down the STRONGEST, MOST CONVENIENT and BEST valves on the planet. They are 20X stronger than normal valves and install in about 1 minute from the OUTSIDE of the wheel! Our Emergency Valves are even 100% tool-free! Plus, every Colby Valve is made in the USA! If you need to make a repair in the field, this is your solution! The "winged spacer" design makes installation as easy as twisting a wingnut. Our Emergency Valves offer a tool-free installation from the outside of the wheel, in about 1 minute. These are .453 size, and will fit everything from bicycles to truck tires. NO TOOLS required! Installs from the outside of the wheel Installs in about 1 minute Fits standard .453 wheel openings 20X stronger than standard valves Available in 2-Packs Black, Red and Orange spacers available - THIS LISTING IS FOR BLACK Quality 360 brass components Made in the USA How to install: When your valve stem fails, simply pull it out or push it into the tire cavity. Take the Colby Valve and insert it into the valve stem hole until the lip of the black seal sits flush. Maintain pressure while tightening until it stops, and you're done. The Colby Valve will create a super strong, airtight seal that can then be inflated with any Schrader style pump, including CO2 inflators. Not only can you get back to civilization, you can keep going and enjoy your adventure or finish your work. The Colby Valve is 20X stronger than the common valve stem, so you'll be good to go.Valve stems break. Fortunately, Colby Valve built a better valve stem. It installs from the outside of the wheel in about 1 minute, is 20X stronger than standard valves and made in the USA! Your tire valves are probably your vehicle's weakest link. One hard impact and you're in a world of hurt. Don't take the risk. Be prepared with the best valves available: Colby Valves. Why Colby Valves? Our patent pending Colby Valves are hands down the STRONGEST, MOST CONVENIENT and BEST valves on the planet. They are 20X stronger than normal valves and install in about 1 minute from the OUTSIDE of the wheel! Our Emergency Valves are even 100% tool-free! Plus, every Colby Valve is made in the USA! If you need to make a repair in the field, this is your solution! The "winged spacer" design makes installation as easy as twisting a wingnut. Our Emergency Valves offer a tool-free installation from the outside of the wheel, in about 1 minute. These are .453 size, and will fit everything from bicycles to truck tires. NO TOOLS required! Installs from the outside of the wheel Installs in about 1 minute Fits standard .453 wheel openings 20X stronger than standard valves Available in 2-Packs Black, Red and Orange spacers available - THIS LISTING IS FOR BLACK Quality 360 brass components Made in the USA   How to install: When your valve stem fails, simply pull it out or push it into the tire cavity. Take the Colby Valve and insert it into the valve stem hole until the lip of the black seal sits flush. Maintain pressure while tightening until it stops, and you're done.  The Colby Valve will create a super strong, airtight seal that can then be inflated with any Schrader style pump, including CO2 inflators. Not only can you get back to civilization, you can keep going and enjoy your adventure or finish your work. The Colby Valve is 20X stronger than the common valve stem, so you'll be good to go.