Marshall Peterss natural woven grass products provide hours of fun for small animals. They are safe to chew and can be used inside or outside of the cage. No dyes, colors, preservatives, or pesticides, safe-natural - interactive! Protects sensitive paws from wire bottom cagesSafe to chewFor rabbits and other small animalsSafe and naturalNo dyes, colors, preservatives or pesticides Ingredients/Materials: Chinese Timothy Hay.