The Monkey Bank Vintage Cast Iron Mechanical Coin Bank Working Reproduction is an authentic reproduction made of durable cast iron. Works very well. With rubber stopper. This charming coin bank features a monkey design and functions just like the original vintage version, making it a unique and nostalgic addition to any collection or decor. With its high-quality materials and attention to detail, this replica is sure to be a conversation starter and a functional piece for any coin collector.