Fits: Walkers Wheelchairs Rollators Commodes Canes Crutches And More Unique And Innovative Design Allows It To Fit On A Range Of Sizes Of Round Tubing Holds A Wide Variety Of Diverse Bottle And Can Sizes Flexible Upper Portion And Firm Lower Portion Holds Bottles Securely In Place Outer Hook And Loop Straps Provide Strength And Additional Security For Heavier Bottles Inner Special Foam Style Holding Strips Yield Additional Grasp Tool Free Simple To Attach And Adjust