Dimensions: 36.22" Length x 35.4" Width x 7.87" Height, cross Base INCLUDED. Large Capacity: We recommend fill it with 90% sand and the rest with water. Total weight is about 280 lbs with fully injected. Durable Material: Made of heavy-duty plastic that are weather resistant, can be used outdoors for a long time. ONLY for PURPLE LEAF offset patio umbrella. ESPECIALLY for 11X11 square umbrella and 9X12 rectangle umbrella. Patio Umbrella Base