Helps walker users glide more smoothly across uneven surfaces and thresholds. Increases walker maneuverability. Installs easily into walker leg tubing. Ideal for those with limited strength eliminating the need to lift the walker. Reduces friction that rubber tips create. Constructed of long-lasting, high-density plastic. Glides fit 1��_ I.D. (Inside Diameter) walker tubing. Weight capacity 250 lbs.