Versatile Wiggle Stool gives you the freedom to move while you sit. Soft, extra-thick cushion provides comfort and support for all-day use. Integrated handles allow easy carrying, even for smaller children. Seat height adjusts between 12" and 18". Selectable heights include 12" , 14" , 16" or 18". Tamperproof height adjustment prevents distractions. Base is angled for improved posture, balance and stability. Rubberized, nonslip base provides increased stability even when tipped over. No-spin base aids focus and promotes a distraction-free environment.