The Ninja multi-tool is one of the most popular wallet style multi-tools where you can store a metal multi-tool device in a standard-sized credit/debit card slot. These tools look fairly weird but can provide a wide range of functions that, for the right person, could come in handy on more than one occasion. 

The great thing about the Ninja tool is The sheer amount of different tools it comes with. In fact, the Ninja is probably the most densely compact multi-tool on the market boasting 18 different tools in a device no larger than a credit card. That being said, how well these tools work or ‘get the job done’ is another question altogether. 

The main tools on the Ninja include a bottle opener, a range of screwdrivers, a box cutter, a ruler, and a can opener. I tested how easy it was to use each and whether or not the tools actually worked as intended. I was actually pleasantly surprised as I had no issues in easily and effectively using the above-mentioned tools. Other more niche tools (ones I’ve yet to use myself) include the 

TL;DR: Overall, the Ninja multi-tool is a nice effective device that works as intended. The quality of the tool doesn’t match the likes of Dango and their premium range but at only $11.99 you can’t really complain. The Ninja is also available in a wide variety of different colors and designs which is nice to have. For more information on the Ninja, multi-tool check them out on Amazon using the link below.