Please insure parents/adult supervision while kids playing.Toy Boat is made from recycled Tin material with rough finishing (not fine finishing) Please remember this fact before order. Please Note: Product batch being different so the colors & pattern may have a little difference from Pics Shown A pop-pop boat is a toy with a very simple steam engine without moving parts, typically powered by a candle or vegetable oil burner The Boat Kit comes with a dropper, an instruction manual and a candle.