High quality material: The universal socket adapter is forged with chrome vanadium steel and the interior is made of 54 high quality CR-V steel tubes, providing high hardness, high torque, high toughness and ultra- sustainability. The tubes are individually spring-driven, so the sleeve can automatically adapt to any shape and can be moved to different types of fittings without changing the sleeve. UNIVERSAL FEATURES: This universal ratchet instantly adjusts to grip most metric nuts, wing nuts, open nuts, shell nuts, eye bolts, square nuts, hex nuts, and more. Equipped with an electric drill adapter, you can easily connect most electric drills, electric screwdrivers and manual ratchets. VERSATILE USE: This universal ratchet can be used in automotive, home repair, manufacturing, construction and other industries, and is also popular with home decor enthusiasts. It’s the perfect gift for any housekeeper, dad, boyfriend, brother, man or woman for Christmas, birthdays and other holidays.