UGREEN 38 IN 1 ALUMINUM ALLOY SCREWDRIVER SET 80459 Meet most repairs needs, such as phone, computer, Switch, camera, radio or Drone. Aluminum Alloy Handle: L94mm Magnetic Extension Bar; L 60mm Screw Bits Dimension: L 28mm Screw Bits Dimension ( 4x28mm) Ergonomic handle, rotating cap design, easy and flexible for operations. The front end of the handle with magnetical design can hold the bits and magnetize the screws. Chrome vanadium steel forging and heat treatment, the screw bits are durable.