Ever need to build a perfectly level piece of furniture, defend yourself in hand to hand combat, then stylishly write your memoir? Then this is the tool for you. I can barely think of any common sense situation where you need a tungsten tip, a level, a screwdriver, and a fountain pen in the same tool. Now for odd or cool factor, this rules. I plan to bring it to DnD.The level is perfectly readable as is the ruler. The ruler so much so you could use it to sight measure for drawing, especially if you're doing a pen and ink drawing. There are four different rulers and I've included photos because aside from centimeters and inches I'm not sure what the rest are.The screwdrivers are small, but large enough for fixing say a spinning wheel. A little too large for eyeglasses. About right for computers. You could add an SSD to your PS5 and check the TV stand is level all with the same pen.The stylus is for the iPad tablet world. It won't work on something like the Kindle Scribe or the convertible HP laptops. It works well for its intended devices. I can use it for drawing in Procreate on the iPad.The attack tip feels sharp. I can assert it can crack a walnut open. I don't know what else I'll ever use it for. Or at least I assume it's an attack tip. It's advertised as a feature and it feels as hard and sharp as the attack tips on pens at the local martial arts store.The pen itself writes nicely one you start it. It comes with six cartridges and a piston converter. I'd put the nib at European medium. It flows well, no skipping, no leaking. Put it down for a while and it still flows perfectly. Because of the of extra functions of the pen, it's a screw cap and you can't post it.Overall, I love the fun factor here. I'm not sure I'll actually use it for more than a pen, maybe a ruler for art.