Package Include 2 x Set of DIY Vacuum Cleaner Toy Features - Color: Random color. - Convenient for students to understand the structure and principle of vacuum cleaners. - Through the self- made vacuum cleaner, more intuitive for children to understand that the vacuum cleaner converts the rotational power of the engine into energy rotating the blades. - Size: Approx. 15.50X3.00X0.50cm/ 6.09X1.18X0.20in. - Simple to assemble and dissemble, which is suitable for students and teachers. - Battery Type: 2 batteries ( NOT INCLUDED ). - Material: Wood. - Let children understand the working principle of household vacuum cleaners and improve scientific knowledge. - High- quality materials, safe and secure, your kids can DIY it with confidence. Goods Description want your children to know the working principle of the vacuum cleaner? Then, our vacuum cleaner toy kit is one of the best choices for you. Using wood material, safe and durable. A perfect science toy kit for the children and students.