10-1102 Size: 3.5" H Features: -Use to strengthen and condition lower body.-Perfect for vestibular training.-Improves ankle range-of-motion, balance, body awareness, and develop joint mobility and reaction skills.-Durable, heavy-duty, and non-skid. Lightweight, compact for portability. Dimensions: -Available in 2" height (Basic), 2.5" height (Intermediate) and 3" height (Advanced).