About This 🥚 HAND EXERCISE & GRIP STRENGTH – Stress balls in 3 resistance levels (soft, medium, firm) designed to improve grip, finger strength, and flexibility. Great for athletes, musicians, and anyone needing daily hand training. 🥚 UPGRADED SIZE FOR BIGGER HANDS – Enlarged 5.5×5.5×6.5 cm squeeze balls provide a better fit for larger palms, offering more comfort, control, and a satisfying hand workout. 🥚 PORTABLE STRESS RELIEF BALLS – Compact egg-shaped squeeze balls fit easily in your pocket or bag. Use them anywhere—office, school, travel, or at home while watching TV or making calls. 🥚 COMFORT & MUSCLE RELIEF – Regular use helps relieve stiffness, reduce tension from long typing or mouse use, and gently strengthen hand and forearm muscles. Also useful for easing bad habits like nail-biting or knuckle-cracking. 🥚SAFE AND LONG-LASTING FOR BOTH CHILD & ADULTS – The Hand Exercise Eggs are made of a thermoplastic rubber (TPR), but do not have a strong rubbery odor and are washable in plain water. Completely safe for kids and adults. You might find the egg gets a little bits of sand and lint when it falls into the floor, never mind, it is very easy to be cleaned by washing it under water. Overview Color : Plus Size - Purple Green Black Material : Thermoplastic Elastomers Brand : Peradix Style : / Tension Level : Medium