Comments about WILSON Championship Extra-Duty Low-Altitude Tennis Ball - 3-Pack:
My elderly mom uses a walker. Like a lot of people do, I cut an X into two tennis balls with a sharp knife. Then I put one tennis ball on each back leg of the walker. It helps mom get around a lot. I don't think it makes a difference if you use low-altitude or regular tennis balls. I am hoping the 'Extra-duty' means that they will last longer.