Description: Science Experiment: DIY eagle science experiment kits building toy.Material: 3D puzzles toy is made of high quality KT board material, smooth surface, burr free and sturdy.STEM: Kids can through the assembly and disassembly of building kits , learn scientific knowledge,improve learning ability, and cultivate practical ability and knowledge.DIY Accessories:DIY Balance bird toys is a fun and entertaining way to improve children'shands on ability,hand eye coordination, fine motor skill.Gift: Science experiment set building kits for kids ages 7-14, perfect for birthdays and holidays. Size Chart: Assembly size:7cmx8cmx19cm/2.76inchx3.15inchx7.48inch Package Includes: 1 Set Science Experiment Kits Note: 1.This is not infant toy, please take away from children to avoid eating.2.Please allow slightly errors due to manual measurement and different monitors.