Glasstile's Cascade Series Basalt CS-90 are random brick-sized mosaic tiles in deep gray, available in 12 3/4 x 12 3/8 mesh sheets for easier installation. These tiles resembling dark concrete would add a certain look of power and strength to any room. With the tiles' polished finish, the Cascade series evokes the kind of immaculate sheen that would make a beautiful design statement in bathrooms, living rooms, bathrooms, and even kitchens. These tiles are a breeze to clean because they are water-resistant and stain-resistant. As such, you're sure to benefit from the quality design and beauty for years to come. When purchased, general installation questions or concerns will be addressed professionally to make your shopping experience easy and pain-free.