Green Pet Aspen Supreme Pellets Pet & Bird All Natural Litter Bedding - 20lb Bag is superior absorbency and odor control from a special blend of fresh aspen wood particles. It contains a natural capacity to inhibit mold simply scoop any saturated areas regularly biodegradable dispose of used aspen supreme pellets in compost piles, flower beds, or with regular trash collection the product will biodegrade in landfills.