1.5 inch diameter x 10 foot long Jumbo PolyDacron Jump Rope. ****Weighs 4.5lbs**** A standard jump rope may weigh 1lb and the expensive "heavy rope" jump ropes weigh a mere half that weight of ours. Jumping rope is a traditional exercise that provides a total body strength and conditioning workout. With the ability to burn up to 1,000 calories per hour, you can use the jump rope to improve strength, agility, coordination or endurance. A common question about the effectiveness of jumping rope, however, is the selection of the jump rope and choosing between a weighted jump rope or a speed rope. Benefits Both a weighted jump rope or speed rope both provide the same basic benefits, which include improved coordination, agility, footwork, quickness and endurance. Using a speed rope, however, focuses on speed and quickness and is better for developing coordination and conditioning by increasing the speed of the rope. Weighted jump ropes, on the other hand, burn a significant amount of calories and can be effective for increasing strength and promoting weight loss.