This product is handmade from Tiffany-style art glass. The raw glass is 100% handmade and exhibits high color and tone variation per piece and from production lot to lot. Prior to installing, dry layout sheets next to each other to confirm satisfaction with blend. Should the design include extenders combined with Billie Ombre, check the extender shade against the Billie Ombre to confirm a visually even blend prior to install. Not Recommended For Use In Showers Or Submerged Areas. Wall Use Only | The appearance of uninstalled glass mosaic is different than the final installed product. The semi-translucent Jazz Glass will be influenced by the choice of setting materials. A mockup to confirm mortar and grout selection is highly recommended. Grout color will greatly influence the appearance of the final installation. Grout color selection may be achieved by filling the joints with dry grout powder. Whether on installed mosaic or uninstalled mosaic sheet placed on white background.