New Fitness EquipmentThis Upgraded Version Of The Boxing Reflex Ball Is A New Type Of Fitness Equipment That Combines Sports And Entertainment At The Same Time. It Can Train Your Reaction Speed, Precision Striking Ability, Eye-Hand Coordination Ability And Defensive Counterattack Ability, Etc., And Let You Exercise Relaxed And Comfortable^ 3 Levels Of DifficultyThe Boxing Speed Reflection Kit Comes With 3 Balls Of Different Weights, Corresponding To Different Levels Of Difficulty: The Heavier Ball Has Better Elasticity, Easy To Master, Suitable For Beginners. The Lighter Ball Feels Soft And The Difficulty Level Is Harder. Large, Suitable For Advanced Training, Different Levels To Choose From^ Adjustable HeadbandBoxing Ball Suit With Adjustable Headband, Suitable For Head Circumference 53-65Cm, Both Adults And Children Can Wear, Lightweight And Breathable, More Comfortable To Wear. We Also Added 3 Spare Elastic Cords And A Threading Needle So You Don'T Have To Worry About The Thread Breaking And Becoming Useless^ Widely UsedThis Novelty Boxing Reaction Training Ball Is Easy To Use And Fun. You Can Burn Fat Anytime, Anywhere. It Is Ideal For Work Or Home, Also For Beach And Park Exercise. Very Suitable For Men, Women, Teenagers Or Children, This Is An Excellent Fitness Gift For Family Or Friends^ Easy To UseThis Boxing Reaction Ball Is Easy To Use. Before Exercising, Please Select A Suitable Exercise Ball And Adjust The Length Of The Elastic Rope To The Length That The Ball Can Naturally Perpendicular To The Abdominal Position. When A Beginner Starts Operating, Don'T Be Too Scared Or Doubt Your Abilities. After A Few Exercises, You Will Gradually Master The Quick-Wittedness And Can Train While Playing^