Fitness Equipment

Please help me If you know the name of this workout equipment?

Hi, I’ve recently been seeing an add on the TV about a workout equipment that gets hanged on the door, and it’s basically some strings that when you hold them and you punch against them, it helps make your arm stronger (or punch stronger). from the Adds I also understand that it also can build up your arms muscles by kind of punching upwards by using the strings that are at the lower part of the tool.

Too bad tought, I forgot the name of it and kinda hoping you guys know. Thanks

Randy couture tower 200

http://www.asseenontvvideo.com/511929/Tower-200-from-Body-by-Jake.html