Vintage spark plug tire inflator, a classic tool used for inflating car or truck tires. Key Features: • How it works: The spark plug (combustion chamber) is removed from the car engine and the inflator's connector is installed in its place, drawing pressure from the engine's compression stroke to fill the tires with air. • Contents shown in the package: • Woven, pressure-resistant air hose with a built-in pressure gauge. • Small red cardboard box containing the connectors and installation accessories. • Type: Vintage tire pump, considered a rare piece or antique collectible today. Made in Taiwan