The Tile Redi RNQH1620DU-20D Quadruple Recessed Shelf containing (2) RN1620D-BI 16" W x 20" H x 4" D Double Niches makes manually constructed shampoo and soap niches a thing of the past. Tile Redi recessed shower shelves provide the perfect spot for your soap, shampoo, conditioner, razor, shaving cream, body scrub, body wash, and other personal care items, while also eliminating the need for bulky shower racks and soap dishes that take up space in your shower or bath. The Redi Niches can be installed in a shower, spa, steam room, by a bath tub, on a bathroom wall, or any place else where you desire a waterproof, attractive shelf space that can be tiled. Tile Redi shower shelves are water proof, leak proof, and mold and mildew resistant - and are designed to be recessed into your shower wall for a streamlined, clutter free look. From there, the marble, stone, porcelain, glass mosaic, or ceramic tile of your choice can be installed directly to the surface of the shower niches with a premium modified thinset mortar or an epoxy adhesive such as Redi Poxy. No additional waterproofing is necessary! Overall dimensions: 32" W x 20" H x 4" D with divider 16" W and shelves 14" H (left) and 6" H (right). • Please note: This quadruple niche set contains (2) RN1620D-BI 16" W x 20" H x 4" D Double Niches that are shipped in separate boxes. The product image depicts what the entire quadruple niche set would look like if installed together, horizontally. If used in the horizontal design that is shown, a niche is created which can then be tiled for a seamless look.• - Contains (2) 16x20 Double Niches shipped in separate boxes- Dimensions (if installed as shown): 32"W x 20"H x 4"D with divider 16"W & shelves 14"H (L) & 6"H (R)- Upscale design- Easy-to-install and Ready-to-Tile, tile set directly on niche surface- Water-proof, leak-proof, and mildew-free