A perfect companion to our Ace Golf Sport Umbrella, the Ace Golf Double Lock Umbrella Holder creates a system that allows for hands free rain protection when mounted on a push cart. More importantly it features an extremely durable double lock system that allows for strong and easy mounting on any push cart. When the rain is over, the highly compact design allows it to easily stow in a golf bag. Besides this great pricing, durable design, and useful function, the Ace Golf Double Lock Umbrella Holder has a 30 day money back guarantee and free exchange.