These Finger Spin Massage Ball Toys fascinated me. Kids will love it. FEATURES Durable Material: Made of ABS material, which is not easy to rust or deform. It will make a sound when you scroll to reduce your stress and it can help you find balance and comfort. New Version Fidget Toys: For more humanized design, we apply steel balls and double bearings instead of regular bearings. Unique Massage Function: The gentle massaging motion of the gyro ball alleviates muscle tension and promotes relaxation, making it ideal for stress relief. Compact & Portable: With pocket-sized, portable and small enough to be played with one hand, these fingertip ball toys can be kept in your pocket, and your boring time will pass quickly. Excellent Sensory Gift: Suitable for desks, home offices, friends and family. This hand-held toy can help massage muscles, relieve anxiety and tension, and improve dexterity. SPECIFICATIONS Material: ABS Size: 30*20CM Package: 1 * Finger Spin Massage Ball Toy