The picnic table and umbrella combo back are sturdy anodized,locking, aluminum frame construction that easily holds 4 adults. It allows youto create a comfortable picnic area anywhere you go. It features 4 seats andunfolds in a flash. The umbrella keeps you cool in the shade and offers anadjustable height and push button quick latch. the table is made from highimpact plastic with an aluminum frame, so it is lightweight. The constructionis very durable. The weight capacity is 200 pounds per bench.