J. T. M Pet Products is owned by Mr. Thomas Carville inventor of the SlidewalkerTM, the only device of it&＃39;s kind. The Slidewalker is a handle, that when attached to the cord or belt of a retractable leash allows, the handler the use of both hands to safely secure and control the pet that is being walked and minmizes the potential for suffering injuries to the hands, legs, shoulders and other parts of the body. The Slidewalker will not in anyway effect the normal intended use of a retractable leash, as the handle allows the cord to slide freely through it as the pet moves back and forth from the handler. Made of ABS plastic it will stand up all conditions and will not damage the cord under noraml use.