Hijax Advanced Size Stilts for Active Kids (Platinum) Made-In-America Advanced stilts for eight to eleven years (Not for beginners). Step height of 17 inches & supports up to 155 pounds & users up to 56 inches tall. Also available in Junior (13") and Standard (15") Sizes. Buy Hijax Replacement Tips on this site. No assembly required. Purchase one set of Hijax stilts and receive 50% off Special Hijax T-Shirt in Special Promotion below!