The 'Sit Up Flex' wooden staircase high chair grows with your child and offers ergonomic, safe and customised seating comfort with a long service life from an early age right through to adolescence. Regardless of table height and age, your little one can sit anywhere with this quick-change artist and actively participate in family life at mealtimes. For small children, it starts safely at the highest level with a support bar and harness system. After simply removing the bar and harness system, it gradually grows into a youth chair - supported by the height-adjustable and removable seat and footrest. Suitable accessories, such as a dining board or seat reducer, are available separately.