Exchange top secret information with your friends using these spy pens! Simply write your message in the invisible ink and shine the pen’s UV light to reveal! What’s Included | 2x spy pens are included in the box, 1x red pen and 1x black pen. The pens includes 3x AG3 batteries, a UV light on its lid which has a button to switch on UV light and is a clear writing pen to conceal your private messages! A Fun Gift | These pens come in a novel gift box making them the perfect gift for all occasions, both fun for adults and children. Dimensions | Height: 5.5cm x Width: 15cm x Depth: 2.5cm Designed in Cornwall | From The Traditional Toys collection by CGB Giftware | Item No: GB06711