LUMEN Eye Protector & PlugA 3D-printed protector that snaps onto your LUMEN Eye to prevent it from turning on in your pocket or during transportation. We also include an emergency spare rubber plug/plunger to keep the ink sealed inside the pen if you lose your 'screw version cap'.
The magician takes a pen and sticks it through the Invisible Zone case. When the case is opened the center of the pen is totally invisible even though the pen is moved back and forth! This one looks totally impossible.