Serious Steel High Speed Rope - Adjustable Cross Training Jump Rope| Fast, Durable Bearing Jump Rope | Master Double-Unders! 10' Cable Adjusts to 9' or 8'. Handle - 5.25" with grooves for extra grip Perfect addition to your WOD workout, agility and speed training, boxing, or for anyone looking to add a cardio element to their workout regimen. The Serious Steel Rope is extremely fast and is ideal for Double Unders and Triple Unders. The ball bearing swivel system allows for mastering the DU or any WODs. ADJUSTABLE  The Serious Steel Fitness Rope has a 10 ft cable and can be easily adjusted with the clamping screws. Easy to adjust for anyone of any height! LIGHT, DURABLE and PORTABLE  Weighing in at less than 6 oz, this rope is great for the jumper on-the-go and with the coated steel rope, you dont have to worry about damage when used as directed. 5 1/4 INCH HANDELS  The 5 1/4 inch long handles allow for a comfortable and ergonomical grip. We have even added grooves around the base in order to make the grip stronger and so you dont slip when mastering the Double Under! 4 METAL BALL BEARINGS - Comes with 4 high grade metal ball bearings. Designed specifically to increase revolutions per minutes.