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 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 one single head valve core removal tool and 20 valve cores – providing everything needed for tire maintenance tasks. Easy to Use: With its design features, this tool can easily tighten or remove the valve core of bicycles, cars, or other pneumatic tires. Specification: 11cm x 1.5cm x 1.5cm / 4.33 inch x 0.59 inch x 0.59 inch Package Includes: 1 single head valve core removal tool 20 valve cores Note: Please allow slight differences of 1-2cm due to manual measurement.