Catch out your mates with an electrifying surprise! This novelty pen will surprise anyone that tries to use it with a harmless electric shock. If you work in an office where colleagues regularly steal your pens, this is a great way to catch them out. If you twist the pens base, then a useable ballpoint tip will emerge, but beware if you click on the top button in the usual manner for a pen that looks like this, youll get a shock! As this item does emit an electrical shock, it should be used with care, & kept out of childrens reach & not used by anyone fitted with a pacemaker.