NOTE: These are slightly used version that we have evaluated and that are still in great shape just with small blemishes on the cord or handle. This happens when someone gets a size too big or too small, jumps a couple times, and returns it to us but the cord has blemishes. These are "like new" in function. No returns or refunds. A heavy 1 lb jump rope featuring a thick 12mm PVC cord that creates both weight and wind resistance. Popular with martial arts training for developing muscle endurance. Recommended for intermediate to advanced jumpers who want to challenge themselves. Rope Usage: This style of heavy jump rope is used by Muay Thai fighters to build grip strength and muscle endurance for grappling. Designed to engage the core, back, shoulder and arms that don't normally get a workout. You need an even distribution of weight throughout your heavy jump rope to get the cardio and muscular benefits weighted jump ropes provide. Weight varies by rope length: 8ft - 1.1lbs (heights up to 5'7") 9ft - 1.2lbs heights 5'7" to 6'1") 10ft - 1.3lbs (heights 6'2" to 6'5")
