Step2 Wonderball Fun Playhouse Working Dutch door provides open and close play Flip the balls into the house or into the maze with the included flipper On the outside, toss balls on the roof and watch as they fall through the maze of activities, making fun plinking sounds as they go! On the inside, place balls on the planks and watch the fun "plinko" effect Bottom basin is the perfect place to store the balls once playtime is over Includes 20-piece play ball set plus a pitcher and pot