The Glow in the Dark Duck Vehicle Valve Stem Covers are a set of four green plastic valve caps designed for easy installation on the rear, left, front, and right sides of vehicles. These valve stem caps have a clockwise thread direction and are universal fitment, making them compatible with various car and truck models. Made in the United States, these valve stem covers feature a cute duck design that glows in the dark, adding a fun and unique touch to your vehicle's wheels. Perfect for those looking to personalize their vehicle with a touch of whimsy and style.