This 55 pound Fiberbuilt concrete umbrella base is excellent for under-table umbrellas. This base measures 19” diameter and 14” overall height. This base features screws to hold an umbrella securely. Standard black sleeve accommodates both 1 1/2” and 1 3/4” poles. This umbrella base is recommended for use with 7-9 foot umbrellas. Available in a variety of colors to match your picnic table and umbrella color!