Better equipment, better results. Maximize your workout with this deluxe, sealed precision bearing speed rope. Constructed with durable, solid rubber, fitted with ergonomic molded handles and foam comfort grips, and assembled with sealed ball bearings, it’s a simple but powerful addition to any exercise routine. Build cardio endurance, develop core strength and agility, and improve lower body muscle tone. Speed rope exercise burns over 150 calories in just 15 minutes.