These biodegradable bags help you to be environmentally friendly as you clean up after your dog - instead of putting biodegradable stool into non-biodegradable plastic bags to sit in landfills for years. They are designed to work perfectly in the Bags on Board bag dispensers and retractable leashes, as well as the Only Natural Pet bag dispenser. Bags are 11" X 16", in rolls of 15 bags.