Hungry Hungry Hippos Replacement Marbles - 20 Piece Set (19 Red & 1 Yellow) - Game Accessories for Family Fun & Kids Board Games

Though we haven't used these yet, they appear to be exactly what they are advertised to be. The reason I'm giving them three stars is because I paid ten bucks for these little pieces of plastic. A brand new game costs four dollars more. If these were half the price, I'd give them five stars.