1PCS Dia 3.15x3.94 Inches K9 Crystal Blank Blocks for 2D & 3D Laser Engraving,Clear Glass Cubes for Subsurface Photo Gifts, Professional Grade Crystal Blanks for DIY Custom Awards

Material: Premium Grade K9 Optical Crystal Dimensions:Dia 3.15x3.94 Inches (80 x 80 x 100 mm) Compatibility: 2D Surface & 3D Subsurface Laser Engraving Packaging: Individual Protective Wrap + Shockproof EPE Foam (Pearl Cotton)

• [Premium K9 Crystal] :Made from high-grade K9 optical crystal with superior clarity and high refractive index. Unlike ordinary glass, it provides a professional, brilliant finish for high-end engraving results.
• [2D & 3D Laser Ready]:Specifically designed for both surface and subsurface (inner) laser engraving. The bubble-free, high-purity material prevents cracking, making it perfect for detailed 3D photo crystals.
• [Enhanced EPE Protection]:Each block is individually wrapped and secured in shockproof Pearl Cotton (EPE foam). This upgraded packaging prevents scratches and breakage during transit, ensuring 100% integrity.
• [Dia 3.15x3.94 Inches Size] :The 80x80x100mm rectangular cube is the ideal size for custom 3D photos, corporate awards, and memorial keepsakes. Fits perfectly on any desk or display showcase.
• [Mirror-Finish Polishing]: Each block is precision-polished on all 6 sides to a mirror-like shine. Whether for a DIY project or a professional gift, this blank provides a smooth, premium surface ready for immediate customization.