The HEXBUG VEX Robotics Robotic Arm Construction Set is a high-quality robotic arm set designed for children ages 8 and up. With its durable construction and precise movements, this set allows kids to build and control their own robotic arm, perfect for exploring the world of robotics and engineering. Made by the trusted brand HEXBUG, this set is suitable for a wide range of age levels, making it a fun and educational toy for young builders and engineers. No manual or box . Not sure if complete but crane extends, lowers and opens.