Kore Design Small Pivot Rotating Stool designed for Kids with 360° Movement and Ergonomic Features. Adjusts from 13”`17”. Tailored for students and children, this adjustable chair offers the opportunity for students of varying heights to enjoy the benefits of active sitting and freedom of movement. The Kore Design Kids Adjustable Pivot Stool encourages active sitting and is made of a special torsion core that drives a child’s spine to correct posture. Increase Secondary Focus with continuous movement while sitting relaxes the right side of the brain, leading to better focus. Waterproof Fabric, upholstered in waterproof fabric with stretch material and three protective layers that repel water, oil and stains. Suggested for: Ages: 6 - 9 ; Grades 1 - 4; Height: 44” - 52”. Material Certificate Compliance, REACH, RoHS, and Class IV BIFMA standard gas lift compliant.