Glazzio's Glass & Slate series, Northampton Putty GS07 is an attractive glass-and-slate mosaic tile made of up of black, deep blue, beige, and marble-like gray random-sized brick. Available in 12" x 12" mesh sheets for easier installation. This aesthetic is eye-catching as it is elegant. It is well-suited for light residential or commercial use, and would be perfect for showers, pools, kitchens, bathrooms, and living rooms. These tiles are durable and hard-wearing, and would make a good investmest for generations to come since they are frost / chemical / stain resistant. General installation questions or concerns can be addressed professionally to make your shopping experience easy and pain-free.