We have not been able to fully set it up yet (thus the 4 star review) but it looks great! Assembly was easy and straight forward. The base is a hard plastic and metal frame with two bags to fill with sand (they recommend 67.5 lbs minimum in each bag) and a soft cover over the entire base. Once we get sand and open the umbrellas and get a month or two of use out of them I'll come back and update my review!