- Compact Design: The Self Locking Pneumatic Chuck measures 1.46 inches by 0.83 inches, making it easy to maneuver and use in tight spaces. - Included in Package: Each set includes one Self Locking Tire Inflation Chuck, providing everything you need for efficient tire inflation. - Efficient Functionality: This chuck securely connects to tire valves, allowing you to accurately inflate your car tires using an air pipe or inflator. It ensures that you maintain the proper tire pressure for optimal vehicle performance and safety. - Durable Material: Constructed from high-quality metal, the Closed Air Chuck is built to last, providing reliability and durability for frequent use. - Versatile Applications: Perfect for home garages, professional auto shops, or roadside emergencies, this tool is essential for any vehicle owner. Whether you need to top off tire pressure before a long trip or quickly inflate a flat tire, this chuck makes the process straightforward and efficient. - User-Friendly Design: The self-locking mechanism allows for hands-free operation, ensuring a secure connection to the tire valve without the risk of air leakage, making it easier to inflate tires without hassle. - Compatibility: Designed to work with standard tire valves, this chuck is a versatile accessory suitable for cars, trucks, and other vehicles, ensuring you can handle various inflation needs with ease.