Glass Inkwell Low Profile / With Pen Holders / Desktop / Clear / Heavy / UV Glow This is CLEAR glass that was produced with a clarifying agent (manganese). The clarifier glows best under 365 nm UV light. Most UV light devices produce UV light that is 395 nm. Does not include ink nor pens. Please note: This item is pre-owned and may show some signs of wear, but it is still in good condition. Item color may vary from screen to screen, photo lighting, or screen resolution. Crayons may be shown to help identify color. Get a sense of scale! Everyday objects like tape measures, water bottles, pens, and coins may be included in some photos for size reference only. When possible, clean recycled materials are utilized for shipping.