Raw Steel End Cap for Hangrail Tubing. 1 3/4" dia. Please note: This item fits the Riviera Perimeter Outrigger Collection Only, and is meant to fit #4652 or #4653 Hangrail Tubing. Image shows part of the hangrail tubing, hangrail tubing is sold separately. This product is a part of our Riviera Collection Metal Displays.