I researched several bases for my cantilever umbrella.  I decided on this one.  It has 4 separate pieces that holds water or sand.  I chose water.  It anchors the umbrella securely.  It’s sturdy.  It doesn’t take up too much room on the patio.  I put potted plants on it to blend in with the garden.  It will be easy to store during the winter.  This is the one to get for your cantilever umbrella.