The 1989 Teenage Mutant Ninja Turtles Sticker Card featuring Leonardo #4 is a collectible non-sport trading card from the popular TMNT franchise. This card showcases the iconic turtle character Leonardo and includes a sticker element, making it a unique and sought after item for fans and collectors alike. With its nostalgic appeal and specific year of manufacture, this card is a valuable piece of memorabilia for any Teenage Mutant Ninja Turtles enthusiast.