The Treasure Garden AKZ13 74 lb. cantilever umbrella base is built out of steel for versatility and superior stability. Included is a steel base frame, resin lid, foot pedal, and four (4) add-on weights. Base holds up to 400 lbs. of pea gravel (pea gravel not included). It is very important to check the umbrella base weight requirement for your umbrella. Before assembly, decide on the location of the umbrella. Allow ample height to avoid damage to your umbrella during assembly and usage. Choose a location that is level and sturdy. Avoid any sloping or soft ground.