Key Features Compatible with the xTool F2 Ultra UV. Supports UV engraving, UV embossing, and inner engraving workflows on this chamfered rectangular K9 crystal blank. Premium K9 optical crystal. A clear K9 crystal award blank gives engraving and inner-engraving work a refined, glass-like presentation. Dual-orientation display. Can be placed flat as a rectangular block or stood upright to form a diamond-shaped (rhombus) presentation. Light-enhancing structure. Multi-angle facets amplify internal reflections, making it ideal for illuminated bases and decorative lighting setups. Perfect for Keepsake gifts, anniversary pieces, pet memorials, newborn mementos, desk décor, corporate awards, and small-batch custom merchandise. Good to Know Clean before processing. Wipe the processing surface before engraving or inner engraving, because dust, fingerprints, or oil can soften detail and create inconsistent results. Learn UV Inner Engraving. Click here for the UV inner engraving tutorial. Handle with care. K9 crystal is durable but may chip or crack if dropped or subjected to strong impact.