Featuring an adjustable seat height of 12-18" in 2" increments, these wiggle stools grow with your students and eliminate guesswork when ordering. An extra-thick padded seat allows for comfortable all-day use. The tamper-proof adjustable height reduces distractions and help promote a focused environment. The rubberized non-skid base is angled for improved posture and provides stability, even when over-tipped. Soft, extra-thick cushion provides comfort and support for all-day use Integrated handles for easy carrying, even for smaller children Adjustable seat height between 12 and 18 inches Tamper-proof height adjustments to prevent distractions Angled base for improved posture, balance and stability Rubberized, non-slip base for increased stability, even when over-tipped. Made in North America