Invisible Ink Spy Pen

This clever spy pen lets you write secret messages only revealed by the built in U.V. light! Perfect for party bags and stocking fillers!Warning: This product is not a toy and is not intended for use in play by children. Contains non-replaceable button battery. A button battery can cause serious injuries if it is swallowed or placed inside any part of the body. Do not attempt to access the battery, dispose of the product immediately after use. Keep batteries away from children whether new or used. If you think that batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.