The Litter Pearls Micro Crystals Unscented Non-Clumping Crystal Cat Litter with Odorbond is a refreshing and modern way to keep your cat happy and healthy. Made of odor-control and safety-tested Silica Gel, these crystals are perfect for use in any home setting. The litter box is no longer a messy, smelly place; instead it’s a clean, dry, and odor-free zone.