This product is a tornado kit, made of solid materials, safe and durable. It can last for a long time without being easily . The product is a practical tornado maker that can bring you more convenience, allowing you to have a more comfortable experience. Features -Color:Multi -Material:ABS -Size:11.00X11.00X7.00cm/4.32X4.32X2.75in -Size:19.50X6.30X6.30cm/7.66X2.48X2.48in -Battery: 2 x AA batteries(not included) -The tornado maker stimulates thinking and hands-on abilities in the field of science. -This tornado making kit provides a realistic and immersive simulation of scientific experiments. -Enhances comprehension of tornado formation and its unique characteristics. -Engages school students by making learning fun and interesting. -This tornado kit is designed with sturdy materials for peace of mind. Package list: 1 x holder Base support 1 x lid for Battery compartment 1 x holder Base cover 1 x Bottle 1 x Motor 1 x Propeller 2 x Terminal caps 5 x Screws 1 x bag of Foams balls 1 x Screwdriver