One model is a single piece, the other is in 3 pieces for those with buildplates that don't fit the single piece.
The cornhole boards this was made for have a 6 inch cornhole. I mounted mine with 1.5" construction screws.
This one fit both of my boards, but you should check the measurements of the model and your boards to see if it will fit before printing.
The author marked this model as their own original creation.