The Deluxe Edition of FlipFlop + FlipFour is made entirely from acrylic. The board is transparent acrylic, one set of pieces is opaque black acrylic, and the other is barely-translucent white "ice" acrylic.
As with the standard edition, the board is marked so you can play FlipFlop 3×3, FlipFlop 5×5, and FlipFour.