Who is it suitable for? Children and teenagers aged 6-15 years with a height of 120 to 160 cm and a weight of 23 to 60 kg. Information on height adjustment: The gas spring activates with a load of approximately 30 kg on the seat. Children under this weight can still adjust the chair upwards, but not downwards. Information on seat height: The seat height is adjustable from 44 to 55 cm. If your child is smaller, it is advisable to place a footrest under the desk so that the child can touch the ground with their feet. Often, such footrests are already integrated into children's desks.