Great seating for special kids! My daughter does not sit, or hold her head, and physical activity is contraindicated for her. In this seat, she sits comfortably (on the rear, 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, my daughter does not get tired in this seat! So now we move around the house and the street with pleasure and learn to sit as vertically as possible – the seat structure makes it easy to 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!