• Allows children to rock and swivel in all directions and keep them active• Engage and train children's core muscles for stronger and healthier backs• The backless design ensures children maintain good postures when sitting on it• Movements on this stool relax the right side of the brain, leading to better concentration• Especially good for kids who are diagnosed with ADD, ADHD, and Autism• The octagonal-designed seat is engineered for a better sitting experience• Materials are harmless to human health and environmentally friendly• A steady and sturdy structure for long-term use• Silicone material cover is for a cool and comfortable seat• Embossed bottom increases friction to ensure children's safety and allows them to sit comfortably in any position• Adjustable height from 16.5'' to 24'', suiting children from age over 7• Fully assembled and no assembly required