Do you have a steady hand? Test your nerves with this DIY fan launch challenge game. Move a hook through a wavy wire maze, but don't let the hook touch the wavy wire maze. If you do, the fan will spin and launch high in the air. The steadiest hand wins! With E-Blox, you can build 3D circuits directly into your brick structures, so they can come to life with light, sound or motion. Compatible with other popular brick products, they offer a great addition to any STEM program. Requires 3 AA batteries, sold separately. For ages 5 and up.