Tilden Black Outdoor Deutan Plano

Outstanding

This totally changed my perception of at least half of the colors. If you are protan like me, go check out the outdoor version in bright daylight and look at red cars. Also look at the red page of the color book where they show all shades of red. Put your glasses on and off, you will lose your mind.

Poor customer service

Worst customer service I expected to get better service. I will not be purchasing any other of their items.

Perfect product