Weldsale WSTOWER12B is 12″ high x 4 ” wide x 6″ deep. This can be used as a stop, as an angle plate, or as a tower to elevate your clamp by 12 inches. This can also be used as an inside corner stop or reference point, and two can also be grouped together to create an outside corner. This can also be grouped with a WSTOMB12 to function as an outside corner. This is a very versatile accessory for your Platen.