KABOOST is the most innovative solution we've found to ensure kids are seated at just the right level¿ in almost any 4-legged chair. How does it work?The KABOOST lifts the entire chair to bring your child up to the same height as everyone else at the table. It features spring-loaded arms, two height positions, rubberized grips and a collapsible design. It's safe, easily portable and extremely sturdy. Ages 20 months to 6 years.