“It's a pen with a mini tool on one end and a spirit level in the middle. Measuring anything with this is tricky due to all the edges and protrusions on the body of the pen vs the scale you want to use - often being in the wrong place. The actual pen element is just your standard biro. The multi-tool end is made of poor quality metal and easily mashes itself up in no time even with careful attention. The phone proof soft end that covers the multi-tool can be prone to coming undone in the pocket also, leading to the fun of finding where it has taken to hiding. Over 2 / 3 months of use all the measurements on the side have also worn off. So now I have a £28 spirit level that looks like a pen and writes like a throw away biro. Not really sure what the point of this is unless you want to display it on a shelf. Overpriced and poor materials.”