The Burner Combos are equipped with a V-Bottom design maximizes stability by tracking in the water for effortless skiing. Their oversized shape makes starting and skiing at slow speeds a breeze. You can also learn to drop a ski and progress to slalom skiing, as they're equipped with a rear toe strap. The 67" size is recommended for over 140lbs. They feature tip inserts compatible with the HO Trainer bar that keeps ski tips together, making starting and learning easy.