his extendable Telescopic Wheel Brace & scissor jack is ideal as a compact solution to keep in your car in case of emergencies. 4 size Extendable Wheel Brace-17/19/21/23MM Features: High-torque telescopic extending car wheel nut wrench easily undoes wheel nuts High torque extending handle for easy use and extra leverage power Strong, light and compact construction Fitted with durable toughened non-slip rubber handle for extra grip and comfort Made of chrome carbon steel Supplied with 2 Double ended sockets (17/19MM) (21/23MM) Chrome Vanadium sockets Telescopic extending handle extends from 350MM to 550MM .