The product is a sealed full Coca-Cola bottle commemorating the 50th birthday of the Knoxville Tennessee Zoo in 1999. This collectible advertising item features the iconic Coca-Cola branding and soda theme, making it a unique and nostalgic piece for enthusiasts of vintage soda bottles and zoo memorabilia. Ideal for collectors or fans of Coca-Cola history, this item captures a special milestone in both the zoo's and the brand's anniversaries.