New snacks on sale now for a limited time! Use code NEW for 15% off.
An invisible ink pen for writing secret messages or passwords, reveals messages with the UV light in the tip.
Part of the Elizabeth and Mary: Royal Cousins, Rival Queens exhibition range.
Find out more about the exhibition https://www.bl.uk/events/elizabeth-and-mary
Shop the rest of the range https://shop.bl.uk/collections/elizabeth-and-mary
Dimensions: Dimensions: 13,9 x 1 cm