Perpetual Motion Machine Model Educational Science Toy Desk Decoration OrnamentUSB Type

Feature: 1. High-quality educational science tool for children 2. Exquisite processing and scientific design, great ornament for office 3. Suitable for home decoration, study decoration, etc., 4. The craft can be used for gifts and children toys 5. Great gift for friends, family and colleagues, etc. Specification: Item Type: Perpetual Motion Machine Model Specifications: USB Type. Package List: 1 x Base1 x Swinging Blade1 x USB Cable