Front Wheel Attachments: Front wheel foot pieces not only allow you to easily maneuver over surfaces which Provide difficulty for walker users, but they also Provide a more natural walking stride. Available in a choice of 3" and 5" inline wheels or 360 degree casters which allow you to change directions with ease. Note: Wheel attachments are to be used on the front legs of the walker only. 3" Wheels 7/8" dia..