SINEDY Aerobic Tangle-free Cord 8.5 ft Adult Exercise Skipping Jump Rope Adjustable Bearing Speed Fitness #06 Develop speed,quickness,coordination and agility with the Speed Rope.This training tool is sure to evoke high-performance game days.The jump rope features foam handles,ball bearing and tangle-free cord versatile action.Easy swivel design for unrestricted rope movement.Tangle-free cord 8.5 ft long for durability and flexibility No-slip grip ergonomic handles for superior comfort Cord length.Heavy duty yoke connection ABEC-3 ball bearing for twist-free action. This training rope is focused on helping athletes improve their game-day performance by developing the five key components of superior athleticism:speed,power,agility,reaction and quickness.Training gives you the drills,programs,insight and information you need to work smarter,train harder and get better faster. Have fun getting your daily cardio in with this rope.Jumping rope for 10 minutes at a moderate pace is equivalent to running one mile in 12 minutes,cycling two miles in 6 minutes,or swimming a quarter mile in 12 minutes.The speed skipping ropes consist of a PVC cord optimised for scuff resistance,speed and flexibility.