Hey cyclists and car owners, this KEYWELL valve core tool is an absolute game-changer for anyone who deals with tires! This clever little tool lets you easily remove and install both Presta and Schrader valve cores - no more struggling with pliers or damaging your valves. The CNC machined design is slim enough to fit between bike spokes, and it's lightweight enough to always have in your saddle bag or glove compartment. You get 6 high-quality brass Presta valve cores and 6 Schrader valve cores that are way more durable than the cheap ones that come with most tubes. The brass construction resists corrosion and provides better air-tightness, so you can finally stop those annoying slow leaks from old valves. Perfect for bicycles, cars, motorcycles, ATVs - basically anything with air-filled tires. At this price with 12 replacement cores included, it's a no-brainer for any serious rider or DIY enthusiast. We stand behind it with a 1-year warranty and 60-day money-back guarantee. Seriously, once you have this tool, you'll wonder how you ever managed without it for quick tire maintenance and repairs!