These are parts to make Beersbee / Polish Horseshoes / Spanish Horseshoes / French Darts / Frisnok (Frisbee not included) wiki

The top has a ring that helps keep score (it goes up to 11)

I did end up having to glue the "ring counter bracket"
I used this for a beer bottle -> beer bottle thing
I used a PVC pipe:

• 3/4" Thick (NOTE: the outer diameter is 26.67 mm)
• 4ft / ~122 cm Long