Description
This set of two invisible ink spy pens turns everyday notes into secret messages. The ink stays hidden on the page until a small UV light brings it into view. One pen has a red barrel and the other a blue one, and each has the words Secret Agent printed in white along its side. A frosted clear cap with a pocket clip covers the nib, and the light sits in the cap, so each pen carries both halves of the secret. The pens measure 14.5cm long, 1.4cm wide and 1.8cm high, a slim size that slips easily into a pencil case or pocket.
These pens suit anyone who loves a mystery, a code or a game of spies. Slide a hidden note under a door, write a clue for a treasure hunt, or keep a private line in a diary that only the right reader can uncover by shining the light across the page. They bring a bit of fun to a rainy afternoon at home, at a desk or at the dining table. With two in the set, there is one for you and one for a fellow agent, so messages can travel both ways.
The pens are made of plastic, and the pair comes in a card box printed with retro secret agent artwork. Before using the pens for the first time, remove the white caps from the nibs. Each pen runs on three LR41 lithium batteries, which you can replace by unscrewing the top section of the pen, so fresh batteries keep the light ready for the next message. Wipe the barrels with a soft dry cloth to keep them clean, and put the cap back on after writing. Tucked into a notebook or a pencil case, they make a playful little present that starts plenty of secret correspondence.
Specification
| Brand |
Rex London |
| Material |
Card, electrical, ink & plastic |
| Length |
14.5cm |
| Width |
1.4cm |
| Height |
1.8cm |
| Weight |
0.0226KG |
| Contents |
Set of 2 |
| Warnings |
Button batteries can be easily swallowed and cause serious harm. Check battery cover is secured correctly before use. Keep batteries away from children. |
Frequently Asked
How do the invisible ink pens work?
You write with the pen as normal and the ink stays hidden on the page. Shine the small UV light in the cap over the paper and the message comes into view.
What batteries do the spy pens use?
Each pen uses three LR41 lithium batteries. You can replace them by unscrewing the top section of the pen when the light needs fresh ones.
Is there anything to do before using the pens for the first time?
Yes. Remove the white caps from the pen nibs before you use them for the first time, and then the pens are ready to write your first secret message.
How big are the pens?
The pens measure 14.5cm long, 1.4cm wide and 1.8cm high. That is a slim, comfortable size that fits easily into a pencil case, a bag or a coat pocket.
What colours are the pens in the set?
The set has one pen with a red barrel and one with a blue barrel. Both have Secret Agent printed in white and are fitted with frosted clear caps with a clip.