The chair that grows with the child - A chair for life. The award-winning Tripp Trapp was designed by Peter Opsvik in 1972. With its introduction, the Tripp Trapp revolutionised the world of children's chairs. The Tripp Trapp fits at any dining table and allows your child to participate in family life from the very beginning. So he can learn from you and develop wonderfully. The intelligent, adaptable design with the height and depth adjustable seat and foot plates offers plenty of freedom of movement. If the high chair is adjusted correctly, your child will sit comfortably and ergonomically correct at any age. The Tripp Trapp grows with your child. The intelligent, adaptable design with height and depth adjustable seat and foot plates offers plenty of freedom of movement. If the high chair is adjusted correctly, your child will sit comfortably and ergonomically correct at any age.