This unusual little cribbage board measures approximately 8" long and 2 ½" wide. I think it is celluloid because it is a very thin material that has give to it. The bottom and the rest of the base seems to be made of wood and all except the bottom is covered with this very thin black plastic material. There is a knob below a circle and when you turn the knob there is a heart, spade, diamond, club and no trumps selection that appear in the circle. Around the marker are the words "THE ALL IN ONE PEG TRUMP BOARD MARKER". There are a few scuffs from use but no damage and the board is fully functional. Once again the board has no original pegs, but I can supply 2 gold colored and 2 silver colored metal pegs that fit very well. We have also used a similar board to keep track of trump when playing Pinochle.