The Aeromat massaging balls are the ultimate tool for massage anywhere and can also be used for sensory therapy. You can ease away tension and release and relax muscles throughout the body using this spiky massage ball. They offer stimulation feedback while relaxing fingers, legs, feet and back. Aeromat massaging balls are perfect for finger and grip exercises, too. The moderately firm sensory balls come in a variety of sizes as well, making it more convenient to reach, massage and hence, release muscles in fingers, hands, legs, feet, etc.