ProCare® Female Foam Cast Shoe, Medium, 1 Each Beds Parts Accessories The integral absolute vertical and Style:Left Ear The integral absolute vertical and horizontal levels are permanently incorporated into the digital goniometer arm * Goniometer reads 0 180 degrees on LCD screen * Has ability to freeze angle measurement * Powered by 1 9V battery * Goniometer exterior is powder coated steel with inch cm marks screened onto arms * Digital angle reached in center * Horizontal and vertical levels to indicate level or plumb starting point * Yellow color coded to show it is for extra light resistance Foam mesh upper with semi flexible skid resistant sole and comfortable contoured heel Loop lock contact closure straps