Do you have a kitchen island, Table Island, bar or high table and are you disappointed that the Tripp Trapp chair is too low for this? We at Jack-Up have the solution for this. The Jack-Up booster seat makes it possible to raise the Tripp Trapp chair from Stokke by 15, 20 or 25cm. This way your children can sit comfortably at the desired height. Jack-Up booster seat The Jack-Up booster seat is available in several sizes and colours. This way you will always have the booster seat that best suits your Tripp Trapp chair. We at Jack-Up stand for natural materials with a cool look. The booster seat is easy to use, no difficult building kits, just place the Tripp Trapp chair in it and you’re done.