This kit contains all the materials needed to assemble a robotic hand with fully articulated fingers. Pulling a cord makes the robotic fingers curl inward in a realistic gripping action. Perfect for young science enthusiasts especially those with an interest in robotics. Detailed assembly instructions included. Recommended for ages 8 years and up. Challenge your child's imagination with 4M toys and kits. 4M educational toys cover a wide range of educational subjects and include science kits arts and crafts kits robotics kits and more.