Castlecreek cantilever umbrella base. Add a weighted base. Fill with your own water or sand. Please note: please look closely at the base of the pictured umbrella. This is the type of base that these work with, kind of an upside down “u” that flares out on the ground. You get 4 separte pieces with a handle. They do not connect to each other in any way. The square’s are about 19.75 squire. Please write with any questions.The item “Cantilever Umbrella Base, Castlecreek 4 piece, square base. -NEW” is in sale since Wednesday, April 22, 2015. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Patio & Garden Furniture\Umbrellas & Stands”. The seller is “3280michaels” and is located in Waconia, Minnesota. This item can be shipped worldwide.