Premium Nutrition: Formulated with Timothy Hay, whole natural oil seeds, and chelated minerals for optimal digestive health and a lustrous fur coat Odor Control: Less litter box odor due to its grain and soy-free formula Versatile Feeding: Suitable for all life stages and breed sizes of guinea pigs High Fiber Content: Supports urinary tract health and promotes overall well-being Convenient Packaging: Available in a 20 lb bag for easy, long-term storage Grain & Soy-Free, and formulated with premium Timothy Hay, whole natural oil seeds (with flax seed), and chelated minerals to promote digestive health and a shiny fur coat. Also there will be less odor in the litter box and many common health problems facing guinea pigs will be avoided.