This clear, window-like acrylic has a high-gloss, lustrous finish that adds shine to any project. Transparent acrylic is completely see-through; use it for faux-glass window effects, in photo frames, shadow boxes, or other display projects. Glowforge sources only cast acrylic, which provides smooth, polished cuts. Acrylic is a remarkably versatile premium plastic that can be used to make colorful, modern jewelry, useful kitchen or bathroom goods, and to create window or display-case effects. Acrylic is stronger than glass, waterproof, and can be molded into different shapes with heating. It can be adhered with custom acrylic glues as well as household super glues. Each piece of Proofgrade acrylic is protected from scratches by a removable paper sheet, and encoded with a barcode for perfect material settings. As a result, each print looks incredible straight out of the laser. Details: Clear 12" x 20" overall size Thick: 1/4" thickness High gloss, lustrous finish Transparent Proofgrade acrylic For use with Glowforge 3D laser printer and for any CO2 laser cutter / laser engraver (sold separately)