Sakura Gelly Roll UV Pen Set - 4 Piece Set (Red, Blue & Green Pens & UV Keychain Light)

The ink from these pens is invisible until you shine the included UV light on them, then the glowing colors are revealed! Ideal for secret notes or transforming drawings and artwork. The UV inks glide on smooth and dry clear. This set includes red, blue and green pens and a UV keychain light. Pens feature a bold 1mm nib.