Sold by the individual piece. Spectre Nemo glows hologram tile—the ultimate compliment to the Spectre Glow series. The hologram finish recreates the light spectrum through the glazing of precious metals. Each piece has different gradients with accumulations on the edges that are a peculiar product feature. The colors of the pieces may vary with shades of yellow/green, green/blue, yellow/orange, yellow/pink up to fuchsia, and metallic blue. Each piece changes in color and reflectivity depending on where you look, the changing of light, and what tile you mix it with. We recommend laying the product never putting two pieces of hologram close together but mixing them between the matte and glossy finishes (sold separately on our page). We recommend using white cement grout joints. We recommend not using aggressive acids for cleaning but supermarket products. Do not use abrasive sponges as they can scratch the product surface. Check out the rest of the Spectre Glow series to see additional colors and finishes.