Brand new kit in package, never opened. 

From the manufacturer:

• Works on most hubs for installation and removal.

- All sizes of studs.

• Installation done by pushing on the head, eliminating the need for threaded adapters.

- Reduces number of adapters required

- Reduces damage to studs

- Increases ease of use

• Remove and install 10 studs in only 10-15 minutes (compare to 20-30 minutes for more expensive competitive products).

• Can be powered with an impact wrench, no hydraulic power source required.

• No need to remove hub from vehicle.

• Reduces risk of damage to hubs, studs, and bearings when using tool.

• Weighs only 12 lbs., assembled to remove studs and 14 lbs., assembled to install studs.