Usage Tips:Description: Material: The A2207 Valve Core Installation Tool is made of nickel plating and zinc alloy, ensuring longevity and reliability.Wide Application: This Valve Stem Core Installation Tool set is suitable for a variety of vehicles including general cars, trucks, motorcycles, bicycles, lawn mowers, all terrain vehicles, trailers and can also be used on air conditioning valve cores.Functional Design: The Tire Valve Tool is designed to remove old and damaged valve cores on tires effectively. This tool makes tire maintenance easy and convenient.Package Includes: Each purchase comes with a single head valve core removal tool and 20 valve cores - providing you with everything you need for your tire maintenance tasks.Easy to Use: With its design features, this tool can easily tighten or remove the valve core of bicycles, cars or any other pneumatic tires. Specification: 11cmx1.5cmx1.5cm/4.33inchx0.59inchx0.59inch Package Includes: 1 single head valve core removal tool20 valve cores Note: Please allow slightly errors 1-2cm differences due to manual measurement.