Bambrella Santa Ana collection has a two-piece pole so that the umbrella pole can be split. This allows for easy storage and ease of transportation. The pole connector is made from stainless steel and the screw system is extremely strong. The hub and runner are made from nylon, and are designed so that they can be split in half. This permits the arms to be replaced quite easily. We also use a patented cleat system instead of using a pin to hold up the umbrella. This enables one to have the shade at different heights.