Keep a market umbrella stable outdoors with this SUGIFT fillable patio umbrella base. The base ships empty at 6 lb and holds up to 90 lb of water, sand or a mixture of both when filled. Two wheels and a molded handle make it easier to roll across a deck or paver patio, while a wide bottom spout allows quick draining for seasonal storage. Two adapter rings fit umbrella poles from 1.5 in to 1.9 in. The 21.5 in square footprint can slide beneath a patio table or stand alone with a center-pole market umbrella. Made of polyethylene, this black base requires assembly and should be wiped clean. Black polyethylene patio umbrella base with a square 21.5 in x 21.5 in x 16 in design. Fill it with water, sand or a combination of both for up to 90 lb of hold-down weight. Wheels, a molded handle, a wide drain spout and two pole adapters support convenient outdoor use and storage. Fits 1.5 in to 1.9 in umbrella poles. Assembly required. Wipe clean.