Engineering & Robotics

Discover the spy-tacular world of espionage with this kit! Assemble a double-security lock with a combination code and key to hide your most prized...

SpyX DIY Kit - Make Your Own Spy Device! Connect the circuits and build your own real working spy gadget.  Learn the science behind SpyX Surveillan...

SpyX DIY Kit - Make Your Own Spy Device!  A cool scientific toy that guides you to build your own spy motion detector device that really works! Con...

SpyX DIY Kit - Make Your Own Spy Device!  A cool scientific toy that you can build your own spy listening device. You will be surprised that how cl...