The pine blocks measure 2 3/4" and just like the original Chatterblock and Add-On set the blocks are crafted from locally sourced, responsibly harvested pine. These blocks are finished in bright holiday colors with a clear finish. The blocks are drilled with a 3/4" hole in the top to accommodate a candle taper. Words, letters or symbols are engraved on all sides of the blocks with each phrase reading correctly from the front and the back. The Christmas Set has white, green and red blocks with the phrases 'Joy, Home for the Holidays, Let it Snow, and Ho Ho Ho.'