High quality: The professionally treated carbon steel used in this universal flexible spark plug wrench is more wear-resistant than conventional materials and offers a longer service life. Includes a 14 mm and a 16 mm spark plug wrench. Design: The universal flexible spark plug wrench is highly flexible, allows 360-degree rotation, and features a magnetic tip to help prevent spark plugs from falling during removal. Wide application: This spark plug wrench is compatible with various vehicles. Material: Constructed from high-quality carbon steel, this tool provides enhanced flexibility, durability, and wear resistance. The spark plug socket is made of carbon steel for improved performance and longevity. You can store the product safely after use.