Item Type: Luminous Fingertip Gyroscope_x000D_ Material: Alloy_x000D_ Purple Light Battery: 4pcs button battery LR41 (built in)_x000D_ Single Battery Capacity: 35mAh 1Rotate For Relaxation: Finger gyroscope offers smoothing and effortless rotate, providing a simple yet effective way to unwind and relieve stress, allowing you to enjoy moments of happiness and calmness. 2Unique High Tech Design: Crafted with the latest technology, finger gyroscope boasts a fashionable and trendy appearance that is sure to make you stand out from the crowd. 3Enhance Cognitive Skills: Manipulating finger gyroscope stimulates brain activity, fostering critical thinking and quick reflexes, making it a valuable tool for intellectual development. 4Classic Gift Choice: The finger gyroscope toy is a popular choice among boys, making it an ideal gift to birthdays, holidays, and special scenes. 5Alloy Material: Constructed with materials, gyroscope is built to withstand impacts and ensure prolonged playtime, guaranteeing endless hours of enjoyment.1 x Hand Twist Lever 2 x Gyroscopes 1 x Bearing 1 x Purple Light 1 x Dismantling Sheet 1 x Storage Bag