GoSports LED Light Up Flying Ultimate Disc, 175 grams, with 4 Glow in the Dark LEDs (Blue, Red, White or Green) LIGHT UP FLYING DISC: Each disc has 4 ultra-bright LEDs which add a whole new level of fun for nighttime competition or casual play - superior to "glow in the dark" discs TRUE FLIGHT: Made from durable construction and light weight materials for optimum flight characteristics and water resistance to ensure the absolute highest quality and value STANDARD SIZE: 175 Grams, and available in five different disc LED colors - Blue, Green, Red, White, and Multi (cycles through 5 colors) TRADITIONAL FEEL: Soft and comfortable in your hand for the perfect throw every time DAY OR NIGHT: Convenient on/off button lets you easily switch between day or night games