_x000D_Description _x000D_ _x000D_The item is a Secret Message Invisible Ink Pen with UV Light. It can be used to communicate secret messages to your friends. Simply write a message with the invisible ink pen, then light up your message with the mini UV light; to see what was written down. _x000D_ _x000D_Features _x000D_ _x000D_- Color: Black. _x000D_- Material: ABS. _x000D_- Size: About 13.5 * 1 * 1 cm/ 5.3 * 0.39 * 0.39 inch(L*W*H). _x000D_- and high quality. _x000D_- The ink is invisible after you write with it, unless you light on the blacklight to see the secret message perfectly. _x000D_- Flavorless and ink, to kids; It can be wrote on T-Shirts, paper, skin! Permanent but washable! (Please do not use on some special surface, like: glass or smooth plastic film, etc; it will influence the effect, and easily to be erased.) _x000D_- Halloween Party Goodies: Perfect for the RSVP's to wedding invitations; Goody bags for kids party; Make a fun party favor; Great goddie bag treat and brings you an amazing variety of fun applications.Packing list1 * Invisible Ink Pen Pen with Built in UV Light Marker for Drawing Secret Message Writing Currency Checking Kids Game Party (Black)