Toothbrush Holder with Multifunctional Base Frame, Storage Rack for Bathroom Accessories, Toothbrush and Toothpaste Stand, Shelf with Cup Holder Product Description Material: Diatomaceous earth and iron Color: Gray Tips: 1. If the surface becomes dirty, rinse with water or wipe with a damp soft cloth or sponge. For best results, use a used towel with mild detergent, then rinse thoroughly with water. 2. If dirt accumulates and clogs the pores, reducing water absorption, gently clean with fine sandpaper or a soft brush. Avoid sanding over decorative patterns to prevent damage. 3. For optimal performance, allow the product to dry completely by exposing it to air once every week or two. Water absorption will be restored after drying. 4. Diatomaceous earth is naturally fragile. Handle with care to avoid dropping. Under normal use, it is not prone to damage from incidental contact.