Polarisation 3D glasses of cardboard 135-45º

This cardboard glasses is unprinted white.
These spectacles are used in 3D beamer projections and analogue 3D slide shows.
Not suitable for normal TV / computer monitors.
The orientation of the left filter is 135º, the right one is 45º.
These glasses are intend to be used once or twice. For that reason they cannot be returned.
Minimum order quantity is 4 pieces.
These glasses can be printed.