It's called a traffic light viewer. So you can see the street light without ducking your head under the visor Sent from my HTC 10 using The H.A.M.B. mobile app
Ah OK. thanks. I was thinking one of those Christmas snow scene shake things but that sounds more logical.
The light refracts through the industrial acrylic lens prism.....pretty god dam cool Sent from my HTC 10 using The H.A.M.B. mobile app