ACE (Active Core Engagement) Stools supports the body’s natural need for movement. Seats that rock, tilt, and swivel allow for freedom of movement and encourage good posture and alertness while learning. This movement stool features a non-slip seat and rounded rubberized base that helps keep the chair in place on hard or carpeted surfaces. Continuous small movements increase blood flow to the body and brain aiding concentration without distracting others nearby. Designed for everyday use in schools, homes or offices, these functional and colorful stools are a fun way to provide extra seating in any learning space. Active seating is ideal for individuals who have restlessness, ADHD, ASD, or sensory sensitivities. The lightweight and adaptable seat is the perfect grab-and-go stool for taking the classroom indoors and out. Quickly and easily rearrange workspaces to create a dynamic collaborative environment between students or use for individual work study. The 18” seat height is recommended for ages 9 years +. For a precise fit, measure the user's leg from floor to the bend at the knee and select the closest seat height.