Folding StoolThis portable stool is made out of high strength nylon and PA66 material, the body consists of 120 locks. Compared to the first generation, support takes on fish scale design, the overall appearance is nicer, the structure is more stable and the load capacity is larger (max capacity 485lb). There are two buckles on the top and bottom of the portable telescoping stool. You can also hold the two buckles to stretch them and turn them clockwise