Product Detail Heavy duty, portable, very stable and free standing (20 lbs. heavier than other brands) FIG Approved Rail (meets international gymnastics competition standard) The Gymnastics Junior Training Bar Extension Kit is SOLD SEPARATELY! Snap locks easily adjusts height from 36" to 48" (54" with the extension kit) Can be used to perform up to level 4 techniques and level 5 kips (level 6 with the extension kit) . The "Gymnastics Expandable Junior Training Bar" is best product for you. We recommended Gymnastics Expandable Junior Training Bar