Amaze friends and family with this mighty power of this natural phenomenon. With a plastic bottle filled with water create a terrific tornado on any tabletop. Manufacturered by 4M. Assemble the set with cross-head screwdriver and power with 2 AA batteries sold separately. This set is recommended for ages 8 and up. Recycle an empty bottle to construct this battery-operated Tornado Maker. Challenge your child's imagination with 4M toys and kits. 4M educational toys cover a wide range of educational subjects and include science kits arts and crafts kits robotics kits and more. 4M offers a wide range of toys and kits to let you build a clock crochet a placemat or turn your room into a planetarium--all in the name of making learning fun.