Unleash creativity and curiosity with this wooden hydraulic arm kit, designed to replicate -life mechanical functions. The precise assembly process promotes fine motor skills and scientific thinking. Whether used as a STEM project toy or a science experiment kit, this robotic hand model inspires to explore the fascinating world of robotics and engineering. Features -Color:Light Yellow -Material:Wood,plastic -Size:21.00X19.00X1.00cm/8.25X7.47X0.39in -Hands- experience: the hydraulic robot arm kit provides an immersive way to learn mechanical principles, making it a standout mechanical engineering toy for kids -Sturdy build: the wooden hydraulic arm is designed for durability, ensuring it withstands repeated use during stem robotic hand model experiments and activities -Encourages creativity: the diy robotic kit allows kids to adapt their own pneumatic robot arm model, fostering creativity and innovation in science and engineering -Biological movement inspiration: the hydraulic hand toy simulates reallife biological motion, encouraging kids to explore and develop a deeper understanding of science -Group learning fun: the kids robotic arm kit is ideal for group activities, enabling children to collaborate and share their stem hydraulic arm kit creations with peers Package list: 3 sets x hydraulic robot models