Features: his wrench is specially for hollow hexagonal spark plugs of 21mm and 26mm, ensuring perfectly fit, effectively preventing slipping and damage, and providing precise operating experience for the installation and removal of spark plugs. Steel, wear resistance and corrosion resistance, ensuring that the tool maintains good performances even after multiple use, suitable for professional and household users. The structure of the wrench is optimized, and the handle design conforms to ergonomics, providing a comfortable grip that allows for easy force application even in small space, reducing hand fatigue and improving work efficiency. In addition to spark plugs, this wrench can also be used for other parts that require 21mm or 26mm , expanding its ranges of use and making it ideal tool for repairing car, motorcycles, and other vehicles. Easy to carry and store, suitable for carrying with the car, meets emergency maintenance needs, and is convenient for car owners to use. Specifications: Material: Steel Dimension: Suitable for 21mm and 26mm spark plugs installations Package Includes: 1Piece spark plugs Socket Wrench note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.