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 Rod Material: Tool Steel Use: Sleeve Extension Bar Color: Black. Package List: 1 x Wrench Extension Rod Note: Manual measurement, please allow some errors.