The product is a vintage toll transit token from Treasure Island Causeway in Florida, measuring 16mm in size. The token is specifically designated for use in a one-way toll collection system. This item falls under the collectible category of exonumia, which includes various forms of tokens used in place of currency for specific purposes like transportation. The design and historical significance of this token make it a sought-after piece for collectors interested in transit memorabilia or Florida history.