Feature:1. [High Torsion] Wrench extension rod is made with a bidirectional winding process, which gives it a strong torsion and is easy to use and will not limit your work.2. [Anti Falling Off] The wrench sleeve extension rod has slot and ball spring design to prevent it from falling off and preventing parts from slipping into the machine.3. [Bendable] Wrench flexible shaft has a variable angle function that can be rotated in different directions, which can make it suitable for narrow angles and spaces.4. [Application] This sleeve extension bar is especially suitable for places where ordinary wrenches cannot touch. Suitable for factories, workshops, industries, etc.5. [Premium Material] The wrench extension bar is made of premium tool steel material with high hardness, and can be used for a long time.Specification:Item Type: Wrench Extension RodMaterial: Tool SteelUse: Sleeve Extension BarColor: Black.Package List:1 xWrench Extension RodNote:Manual measurement, please allow some errors.