Key Features Compatible with the xTool F2 Ultra. Supports UV laser engraving, embossing, and inner engraving on crystal balls, delivering precise 3D designs inside the glass. Premium K9 Crystal Sphere. Available in 2.36" (60 mm) and 3.1" (80 mm) sizes. Crafted from high-clarity K9 optical glass, providing exceptional transparency for detailed inner engraving. Pair it with an LED Display Stand to further enhance depth and visibility. Engineered for Crystal Ball Inner Engraving. Optimized for UV laser inner engraving workflows and fully compatible with the official Inner Engraving Fixture, helping ensure accurate positioning and consistent engraving results. Striking 3D Visual Effect. Intricate designs appear suspended within the crystal without damaging the surface, creating an elegant dimensional display from every angle. Perfect for Personalized Gifts and Décor. Create custom keepsakes for anniversaries, memorials, weddings, pet tributes, holiday decorations, or elegant home and desk displays. Good to Know Crystal Ball Inner Engraving Tutorial. Click Link 1 and Link 2 to access the complete crystal ball inner engraving tutorial. Use the Official Inner Engraving Setup. Select the appropriate Inner Engraving Fixture for your crystal ball size and ensure the crystal ball is fully submerged in engraving oil before processing to achieve optimal engraving quality. Choose the Correct Processing Setup. Available in 2.36" (60 mm) and 3.1" (80 mm) sizes. Use the appropriate fixture and container for your selected size, and ensure the engraving area remains within the xTool F2 Ultra's supported inner engraving work area for the best results.