Swivel Bearing System Jump Rope

This jump rope is designed with a swivel bearing system that is technically engineered for eliminating friction, drag, tangling and allows smooth turning action in all directions.
Designed with an advanced swivel bearing system for high intensity jump rope training and makes jumping easy, effortless and fun.
How do I determine the proper rope length?
Generally the proper rope length is determined by your height as follows:8 foot: 4'10"-5'3" 9 foot: 5'4"-5'10" 10 foot: 5'11"-6'2" or over. Jump rope length depends on how high you hold your arms as you turn the rope with your wrist.