I have replicated my grandma's lace patterns into my designs, and many of my mezuzahs have clear windows to read the Sh'mah inside. I choose to leave both top and bottom open so the spirit of "blessing" is easily spread within the home. This mezuzah has a dark purple firework pattern along with indigo and lavender colored glass. Tiny said.....the blessing is not kosher. My mezuzahs are affixed with two sides of industrial grade Velcro so as not to harm your door frame.