What Was Used To Make This Mod Square Minimalist Lamp?

Minimalistic, boxy and transparent. What is this lamp made from?

Ahhhh! Now you can see it.

San Francisco based Transparent House pays homage to the 80’s with its TapeLamp. 100 cassette tapes and two sheets of plexiglass–MINIMAL!. Completely handmade in San Francisco, only 2-3 are made per month. Available on Etsy for $1200.00.