Description The frame of the swinger is made of plating ABS plastic and iron. Principle: The force is applied by the force of the hand and then the energy converted by the battery continues to swing until the battery is running out. Features - Color: As shown. - Material: Plastic and metal. - Size: Approx. 24 x 22.6 x 14.5cm. - The swinger is made of material, you can see how the movement works. - A and office desktop decoration and a cool gift for all special occasions. - It is perfect for your outer space themed office or room decoration, also great for those enthusiastic about science or to demonstrate the laws of physics in science classrooms. - Perfect for a birthday, holiday, Mother's day, Christmas, Father's day gift. - Funny and useful for those kids who want to learn more about magnet and physics.Package list: 1 X Motion Toy