Designed specifically to be used with your 9' outdoor umbrella, the Jaida umbrella base offers just the support you need. This sturdy and solid 80 pound base is crafted of durable cement and a high density Polyethylene shell in a white finish. For easy mobility the base has one large wheel. It comes with a 14" stainless steel stem and accommodates umbrella poles up to 2" in diameter along with two tightening knobs that will secure your umbrella in place.