The Bags On Board Rainbow Refill Pack will fit most dispensers. The vibrant colors include yellow, orange, pink, purple and blue. The Bonus Pack features an additional 20 Free Bags! The leak-proof bags provide a convenient way to dispose of your pet's waste. Pet waste pick up is a necessity. For responsible pet parents who make it a habit to enjoy the freedom of the outdoors, Bags On Board provides strong, reliable solutions that make the job a lot less yucky.