Here is your solution to dirty paws, post litter box visits. Soft silicone spikes graduate from long to short to trap the grit while being gentle on your messy cat’s sensitive paws. The easy-to-clean silicone material keeps it from sliding around and creating further mess. Features: Unique silicone material naturally attracts dust. Made from FDA-approved food grade silicone. BPA Free. PVC Free. Universal design to accommodate various style litter boxes. Care: Wipe or rinse with warm water and soap and air dry or place in dishwasher.