The KingsBox professional skipping rope is equipped with bearings that allow it to have a very high rotation speed (5-6 revolutions per second). The jump rope is coated with quality rubber that will last over time and withstand even the most extreme conditions. You can train with single-under, double-under and triple-under, so it is suitable for beginners as well as experienced athletes. You can adjust the jump rope quickly by cutting it at the end and making it suitable for your height. Measure the rope workout by climbing with both feet on the middle of the chord, then take the handles in your hand and bend your elbows until you have your forearms at 90 degrees. If the rope is loose, shorten it a little longer. Now the rope is ready for the double-under!