The Ultra Micro Crystals Cat Litter is a high-quality cat litter that is perfect for eliminating odors in your home. This cat litter features silica gel crystals that are absorbent and have a maximum odor control rating of 99.9%. The Ultra Micro Crystals Cat Litter is available in a 5-pound bag and is easy to use. It is also very low dust and can be used safely on any type of surface.