Great gift idea, beautiful interior and psychotherapy. High Quality - The design is stylish and innovative. VERY VERSATILE - A beautiful decoration to place in your home, school or office. Stylish tabletop toys for adults and kids. One 9v battery lasts more than a week High quality material makes it eco-friendly and durable. Let you buy with confidence and use with confidence. Metal Products, a long-running company. It can spin continuously for hours or even days without stopping. Great gift ideas, beautiful interiors and psychotherapy. Rotate it with external force and continue to use the battery until the battery is exhausted. Lightweight and compact form factor for easy portability and storage. Great for kids toys and home decor, or as a great gift for a friend. Due to manual measurement, there may be some errors in size and weight. Colors may vary slightly due to differences between monitors. Product color: black and silver Product size: 8.8*3cm, top: 2.2*1.9cm Specification: Condition: 100% New Material: ABS + Metal Battery: 9V battery (not included) packing list: 1 * base 1 * Top