Note:Only compatible with standard Market Umbrellas,Not suitable for Cantilever Umbrellas. Fits 1.5"–1.9" diameter umbrella poles with an adjustable tightening mechanism; compatible with 9' square, 6' squre, 7' square, 8' square, 8' round, 9' round, 4' X 6', 6' X 9' Market Umbrella. Size: 19.7 X 19.7 X 3.94 inches, fill with a mix of 78% sand and 22% water to reach 115 lbs for maximum stability. Equipped with wheels design for easy move. Made of durable, weather-resistant PP plastic for long-lasting performance. The 3D textured surface on the base adds a stylish, modern aesthetic to your outdoor space. This table umbrella base fits market umbrellas and needs sand/water fill, with wheels for easy movement.