Description:Products have the characters of scientific experimental nature, DIY design, which you can strengthen the child's hands-on skills and to develop creative talents.Product is made of eco-friendly and high-quality green wood and to choose safe electronic components, which makes it has stable and reliable.It is made of wood.The length of the product is 35cm, the width is 20.5cm, the height is 5cm.It is suitable for early education of kids.Item Name: Dinosaur Stem ToyMaterial:WoodBatteries: 2 x AA Batteries(Not included)Size:35cmx20.5cmx5cm/13.78inx8.07inx1.97inNotes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.When assembling the product, the red wire is connected to the positive terminal and the blue wire is connected to the negative terminal.Package Includes:1 X Dinosaur Stem Toy