Features: Engineered with a 360 degree rotating joint, this sparks plug socket effortlessly accesses hard to reach plugs in confined engine spaces, while the built in magnetic rings securely holds fasteners during removal. The thin walled design reduces bulk without compromising strength, featuring standard 3/8" drive compatibility for seamless integration with most ratchets and torques wrenches. Professional mechanics and DIYer enthusiasts will appreciate its precise engineering for automotive maintenance tasks requiring angled access to sparks plugs. Tackle stubborn plugs in cramped engine bays or awkwardly positioned cylinders with the flexible universally joint that maintains torques transmission efficiency. Available in 14mm-21mm sizes including 5/8" and 3/4", this corrosions resistant universally joint socket set combines industrial grade durability with magnetic retention for error less servicing. Specifications: Design: thin wall, built-in magnetic rings, universally joint Package Includes: 1 Set Sparks Plug Socket note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.