Description: 【Interactive Math Learning Tool】: This fidget spinner combines numbers with play, encouraging children to engage with math through and counting activities, making learning fun and interactive 【Precision Balance Technology】: Equipped with high precision bearings, this rotating fingertip toy ensures stable rotation for extended periods, enhancing the overall playing experience 【Enhances Hand Eye Coordination】: Users can improve their fine motor skills and quick thinking by adjusting finger pressure to control the rotate direction and speed of the fidget spinner 【Premium Construction】: Made from sturdy plastic material, this fidget spinner is designed to withstand regular use while maintaining its performance quality 【Portable Design】: Designed to be lightweight and portable, this fidget spinner is with diameter 12 cm/4.72 inch, great for on the go carrying, whether at home or while traveling Specification: Material: Plastic Size Chart: Box Size 12.5 cmx12.5 cmx1.1 cm/4.92 inchx4.92 inchx0.43 inch Diameter: 12 cm/4.72inch Package Includes: 1 Math Fidget Spinner Note: 1.This is not infant toy , please take away from children to avoid eating. 2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.