Make your pool the hot spot for fun this season with the Swimline Cross Pool Volleyball for In-Ground Swimming Pools. This set includes a heavy-duty nylon volleyball net and blow molded bases that may be weighed down for extra stability. It fits a 20-foot in-ground pool. About Robelle Industries Since 1973 Robelle Industries has been providing superior, dependable, and affordable swimming pool products. They have painstakingly built a line of quality swimming pool products that include pool chemicals, pool accessories, and everything in between.