The Spy UV Pen No name model 8435250939305 — Invisible Ink Pen 0.7/1.0 mm Tips, Monsters Mix is a compact writing tool that dispenses UV-reactive invisible ink. The pen offers two selectable tip sizes, 0.7 mm for finer lines and 1.0 mm for bolder marks, and is supplied in a themed Monsters mix. The ink remains invisible under normal lighting and becomes visible only when illuminated with a UV light source, enabling discreet marking of documents, personal items or creative projects.
Advantages
This UV pen provides dual tip-size flexibility to suit different marking needs, from precise annotations to more conspicuous identification. The invisible ink reduces visible clutter while allowing secure, covert labeling that is revealed under ultraviolet illumination. Its compact design and themed appearance make it convenient for hobbyists, event staff, or anyone requiring temporary, non-destructive markings.
Suitable for
- Security marking of personal belongings and documents
- Inventory tagging and event wristband or ticket control
- Hobby and craft projects requiring hidden details
- Novelty uses, scavenger hunts and party activities
Key specifications
- Tip sizes: selectable 0.7 mm and 1.0 mm
- Ink type: UV-reactive invisible ink (visible only under UV light)
- Form factor: compact, handheld pen
- Design: Monsters-themed mix for varied appearance
How to use
Remove the cap and select the desired tip size if the pen provides a switching mechanism, or use the cap-marked end corresponding to the chosen tip. Apply ink to the surface with light, even strokes; allow the ink to dry to avoid smudging. To view markings, illuminate the written area with a UV flashlight or other ultraviolet light source. Store the pen capped and upright when not in use to maintain ink condition and prevent drying.
Usage recommendations
Test the ink on an inconspicuous area first to confirm compatibility with the material. Avoid using the pen on highly absorbent or heat-sensitive surfaces. Keep out of reach of children and avoid contact with eyes; follow general safety guidance for inks and UV illumination.
