Grade 4 1.35 meters (actual weight 10.8 pounds)
Level 4 foot 1.5 meters (actual weight 11.8 pounds)
Grade 5 1.65 meters (actual weight 12.4 pounds)
Grade 5 foot 1.8 meters (actual weight 13.2 pounds)
Grade 6 1.95 meters (actual weight 14.8 pounds)
Grade 7 2.35 meters (actual weight 17.2 pounds)
Grade 8 2.65 meters (actual weight 19.9 pounds)
Level 9, 2.98 meters (actual weight 22.0 pounds)
Level 10 3.3 meters (actual weight 24.6 pounds)
Grade 11 3.6 meters (actual weight 27.1 pounds)
Grade 12 4.0 meters (actual weight 30.1 pounds)