Monteverde's One Touch Tool Pen is a spirit level, a ruler, a screwdriver, a capacitive stylus and now, a fountain pen. After all, who doesn't wish that their ruler/spirit level could transform into a fountain pen? Special premium brass finish has the look of a quality old tool. The finish is intentionally left a little imperfect. A thin lacquer coating helps reduce oxidation, but may well wear off with time and use, giving a more aged look.

With the capacitive stylus you can doodle on your iPad without it feeling like you're finger-painting.

The screwdriver attachment is stowed away safely under the stylus when not in use, and the stylus itself can be attached to either end of the pen so it doesn't get lost when you're busy driving screws. Why, you might ask, do I need a screwdriver in my pen? We can't say for sure - a Q-Branch gimmick perhaps!

A ruler is one of those things that's rarely around when you need it, and with the spirit level, at least you'll know that the desk is level if you can bring yourself to put the pen down.

The functional brass finish will suit almost any tool belt, even Batman's.

Refill with short international ink cartridges.

154mm long, 10mm barrel width, weighs 38g.