Offering a very high end workout device that builds speed for any age group, it's called the REALRUNNER. I'm working with David Segui (former MLB player/ Orioles/Mets/Expos) and Doc Greer (inventor) of this top level workout unit. There are a number of professional athletes which I'm not at liberty to name due to promotional guidelines. In the very near future, there endorsements will be available. In addition to the Runner, the TOURQE machine is just another one of Doc Greers workout products which perform on a high end level (for the serious athlete). The TORQUE is a uniqe unit which enhances the CORE of the mid section of the body. Plus, will improve explosion on the upper body (arms,shoulders). Very good for football, wrestling,rugby,baseball, and other sports. Please go to www.realrunner.info for more info. Please contact me for more details. 518 331-0186