Description:This is a self-assembly kit that not just improves children hands-on ability, exercises their problem-solving skills, and stimulates their curiosity and creativity.Clear and complete science guide booklet for kids to follow, let your kids to explorer their own world independently, and exercise their ability to solve the problems.The DIY toy is made of natural and environmentally friendly plastic materials. Your kids can create electronic builds with their own hands, using the motors, wires and all parts included.The length of this DIY toy is 13cm, the width is 11cm, and the height is 7.4cm. It can make learning more fun, learn basic principles of simple circuit, motors, mechanical and engineering.DIY toy is a great choice as Thanksgiving Day Gift, Birthday Gift, science fair and family activities.Item Name: Science Experiment KitsMaterial:PlasticBatteries: 2 x AA Batteries (Not Included)Size:11cmx7.4cmx13cm/4.33inx2.91inx5.12inNotes: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.Package Includes:6 X DIY Science Experiment Kitsor9 X DIY Science Experiment Kitsor12 X DIY Science Experiment Kits