we bought this model but have made it as fast as it was too dangerous for the buttocks and the backs of our children (3 and 6). Indeed, they slide and bounce pretty hard on the last part of the slide. Buttocks cashing but the back suffers a violent shock !! We do not want to wait too violent a rebound handicap one of our children. So we strongly advise against this slide. We have not had this problem with other slides previously purchased.