Features: 3 Levels: The massage balls have different levels, red is high difficulty, blue is low difficulty, and yellow is massage hexagonal ball. Novices can also use it easily, the bounce ability of the balls can exercise eye-hand coordination, can also play a buffering role before exercise. Gift preparation: You can give the unpredictable bounce massage balls to family and friends who like sports, help them relax their muscles and their bodies after exercise. You can also give them to relatives, colleagues, classmates to help them practice reaction skills, show your care, and improve your feeling. Specifications: Material: rubber Color: red, blue, yellow Size: approx. 5.5 cm/ 2.17 inches Quantity: 3 pieces Package includes: 3 x Reaction balls Notes: Please allow slight deviation due to manual measurement. Please allow slight color difference due to different monitor.Available occasions: the reflex reaction balls are widely applied at home, in gymnasiums, and on training grounds, they can be served for both bodybuilders and athletes; According to the simple appearances, men, women, adults and adolescents can use them without stress. Portable size: the sport reaction balls are approx. 5.5 cm/ 2.17 inches, the size is suitable for you to carry and store, you can take the balls in your pocket and carry-on bag when you go out, you can also put them in drawers or cabinets when you need not to use them. Serviceable material: the massage ball sports equipment is made of rubber, this material is durable, so the balls can serve you a long time, you will not have to worry they will easily break or deform, and they will not hurt your skin or hands when you use them. Raised design: the raised design on the reaction balls will not only make you feel uncomfortable, but also help you massage the parts of your body, they can be widely applied to help you relax your muscles and relieve fatigue after you exercise. Package includes: there are 3 pieces of bounce reaction balls for you to choose and match, they have different levels, you can pick the proper ball to use, and you can also share with your family members and friends, invite them to use the balls with you.Best Sellers Rank: See Top 100 in Sports & Outdoors. Product Benefits: Fatigue Relief. Color: Blue,red. Brand: Sumind. Material: Rubber. : B0965CBXLW. Manufacturer: Sumind. Date First Available: May 29, 2021. Package Dimensions: 5.31 x 4.72 x 1.77 inches; 5.29 Ounces.