Great seating for special kids! My daughter does not sit, does not hold her head, and physical activity is contraindicated to her. In this seat, she sits comfortably (on the ass, not on the tailbone), the back is flat, the seat angle is very comfortable – the legs are not raised much, but the child does not slip, and most importantly, the daughter does not get tired in this seat! So now we we move around the house and the street with pleasure and learn to sit as vertically as possible – the seat structure makes it easy change the angle! I was very pleased with the material from which the seat is made – soft and dense, very comfortable! generally all thought out in this product! Including belts – the seat can be attached to a simple chair, to an airplane chair, to a stroller – super handy thing for special kids!