Rushawy Alarm Building Kits Science Experiment Kits ,DIY Early Learning, Educational Toy.Alarm building kits model science toys for kids.Diy wooden science experiment needs to be assembled by itself, you can assemble it with your children to help them understand the working principle of sound light circuit.STEM building kits for kids can be painted by yourself, and it is also a very beautiful home decoration after completion.Science toy is made of quality wooden material, which is strong and .Wo
