Yes4All Premium Weighted Jump Rope Heavy Speed Rope, Super Fast Jump Ropes, Fully Adjustable Skipping Ropes &ndash;Cross Fitness, Cardio Training - Best Exercises for Men, Women & Children New and advanced design: two more metal blocks, each weighs 150g, for added intensity of your training Durable solid rubber rope construction, easily adjustable jump rope Molded handles with foam grips for comfort and better grip- won't slip even in the most intensive workouts Designed for cardio workout, weight loss, building endurance, stamina & speed Rope measures 10 feet long overall and can be shortened to any length that is suitable for adults and kids