Funrise P.O.D.S Medium Playset - Thunder Swamp Thunder Swamp - Water Tonka P.O.D.S., construction sites that go anywhere, lock them together and you can make that big job even bigger Each has the ability to interlock with the other to create a larger play environment expand on imagination, expand on the fun With locking hinged lids that fit securely over the P.O.D.S., they are stackable and easy to store Each set comes with a Tonka vehicle and multi-use accessory