Description: Material: This Socket Set is made of high quality steel material, Anti rust, No slipping, with high strength protection and long service life.Equipped with storage box: Our Impact Socket Set is convenient for transportation, quick organization, and storage, and can help you easily identify and use it.Wide Application: This Thin Socket Set fits most cars, will not scratch hub, and is durable.Inner hex socket, high efficiency, simple operation, strong adsorption force, will not fall offProtection: 1/2" Drive Thin Wall Socket Set helps protect the outside of your wheel lug nut from scratches.Accessories: Socket Set adopts a colorful design, clear markings, and convenient and practical, ideal auto accessories. Specification: Material: steel Size Chart: 15mm: Length 7.8cm/3.07inch Height 2.4cm/0.94inch17mm: Length 7.8cm/3.07inch Height 2.4cm/0.94inch19mm: Length 7.8cm/3.07inch Height 2.7cm/1.06inch21mm: Length 7.8cm/3.07inch Height 3cm/1.18inch22mm: Length 7.8cm/3.07inch Height 3cm/1.18inch Package Includes: 1x thin wall socket set(5 pieces) Note: Please allow slightly errors due to manual measurement and different monitors.