Burn major calories with one simple action! Plastic speed jump rope with weighted EverGrip handles for added grip. 1.5 LBS maximum removable weights challenge your cardio and upper body training. Features precision ball bearing rotation for increased speed. Increases cardio performance, builds endurance, improves coordination and strengthens hands and wrists. Ideal for improving fitness level, building strength and endurance, and losing weight. Adjustable length, up to 9 FT long. Requires a 4 x 6 FT space, and approximately 10 IN clearance above head.