The Peephole Ring

When the ring is placed against any solid surface
it acts as a peephole. Peephole can be used to see
through up to 3ft of solid matter. Note there is no
actual hole in the surface the ring only allows you
to see through it as if there was a peephole at the
location of the ring.
Also note the ring doesn't provide any light, so if it is
dark on the other side, all you will see is darkness.