DIY Instruction Booklet:Package with detailed English instruction bookletkids can follow the booklet to build their robotic step by stepMake learning more fun learn basic principles of simple circuit motors mechanical and engineering. Learning through Play:Kids will enjoy the happy time in assembling and playing themand learn science knowledge from the STEM toyswhich encourages your kids to explore the world and solve the problems independentlyimproves their hands-on ability. Manufacturered by POKONBOY. Educational Gift for Kids:The STEM science kits are packaged in a exquisite gift boxit is a ideal educational science gift for you kids on BirthdayChristmas DayChildren's Day and other special days.Enjoy the endless fun of DIY science activities with your kids.Recommended for teens age of 6 years old and up. Warm Tips:Please read the instructions carefully use the correct circuit diagram to avoid short circuit.The robotic toy kit needs to be assembled with the parentssmall parts can NOT be eaten.Please contact us if have any problems. 4 Robotic kits :Kids can use the science kits to build 4 different types of robot-Doodling Balance Car Reptile Robot and Biplane.The package includes 4 pack robot parts a small magnetic screwdriver and instruction booklet.Requires AA batteries (not included).