Fresh World Bedding Is A Paper Based Litter Made With Baking Soda For Superior Odor Control. Independent Lab Results Show It To Have The Best Odor Control And Absorbency Of Any Small Animal Bedding On The Market Today.Vibrantly colored 100% recycled paper bedding features superior absorbency odor control in a phenol-free, unbleached, biodegradable product perfect for the green pet owner. High density fibers yield greater absorbency in this easy-to-clean, pet-friendly.