SPIKY MASSAGE BALL RELIEVE MUSCLE DISCOMFORT: Using a grip ball for exercise can reduce nodules and tightness, relieve muscle soreness, improve athletic performance, and increase flexibility. The soft massage ball can be used on your feet, back, muscles and fascia, thereby reducing muscle tension and discomfort, allowing you to have a mood! TRAINING MUSCLE STRENGTH: Spiky Ball is an office health product for keyboard workers, which can improve grip, hand endurance, flexibility and muscle tone. A hand ball can be used for grip strength exercises, finger training, wrist muscles, assisting rehabilitation training after injury, and reducing stress. SOFT AND ELASTIC MATERIAL MASSAGE BALLS: Hollow Spiky Ball is made of TPR material, which has excellent elasticity and strength, good hand feeling, hollow soft ball, and will not deform when pressed at will. Whether you want to relieve muscle soreness, plantar fasciitis, or do some guidance before or after exercise, our massager can provide you with a good experience and feeling. SMALL AND PORTABLE: The Soft Spike Ball is small in size, light in weight, and has a pointed design. It helps to exercise fine and rough motor skills. Massage roller ball can also be used for massage. You can put it in your carry-on bag or suitcase. Suitable for use in gyms, homes, offices and fitness centers. THE GIFT: This Spiked Massager Roller is a surprise gift for fathers, mothers, women, men, wives, husbands and all relatives. It is a gift for any holiday, birthday, Christmas, anniversary, father's day, mother The gift for festivals or other special occasions.