Designed specifically to be used with your 8' outdoor umbrella, the Cien umbrella base offers just the support you need. Crafted of durable cement and a high density polyethylene shell, a white finish keeps this sturdy and stable 120 lb. base attractive. For easy mobility the base has one large wheel. The stainless steel stem includes post collars and fits 1.5" to 2" diameter umbrella poles. Includes hand-turn knobs for securing your umbrella to the base.