Fun: Perfect for stag/hen parties, birthday and festivals. Reusable: Cups are hand washable. Contents: 12 plastic prosecco glasses, 12 plastic beer glasses, two pink ping pong balls, two white ping pong balls. How to Play: Two teams throw balls into the plastic glasses, the losing team drinks. Party Pong Set: Get a 28-piece party pong drinking game | Party Pong Set | Wowcher