Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue
- Invisible/colorless in normal light. Glows bright blue in UV blacklight. Please note, these markers do NOT glow in the dark. You must have a blacklight to get the glow effects..
- Extra large body with broad tip. Contains twice the ink as our standard sized markers!.
- Safe for use on skin. Use for security marking (such as admissions) or create amazing invisible body art designs that glow in blacklight!.
- These are the markers you want for semi permanent invisible marking. These markers can be used for: Event Tickets, Industrial Coding, Security Printing, Coupons, Raffle Tickets, Inventory Control, Advertising, and more!.
- Ink is fast drying and does not remove easily! Avoid sensitive area such as eyes, mouth, and nose.