Set of two felt-tip pens with special ink, only visible with a UV torch.
This brilliant set contains two 13cm felt-tip pens for writing secret messages. Simply use the nib to jot down your confidential notes, then turn on the torch at the opposite end and shine it to reveal the text! The UV-sensitive ink glows under the torchlight like magic. With two included in the set, you and a friend can have great fun thinking up a new language, swapping sneaky doodles and more. The ultimate spy accessory. Stu-pen-dous!