Review on Versatile Universal Socket: Self-adjusting for 3/8'' - 1-1/16'' (9mm-27mm) - Ideal Tool for DIY, Handymen, and Gifts! by Ronny Goodman

Works well but has some limitations that make it not quite universal. This is very handy when you just need to tighten something and need a tool, for example in the kitchen, that you can grab quickly instead of rummaging through your toolbox. For practical use, however, it has a few issues: (1) The pins aren't perfect for ANY size, and I had a couple of screws that slipped when I tried to really tighten them. Others caught it brilliantly. (2) The item is about 2.5cm wide to accommodate both small and large sizes. However, this means that a smaller bolt is not available in a limited space. I had to tighten a small screw on my kitchen chair and I couldn't fit this thing in there due to its size. (3) it's not as deep as it looks, making it not very good for holding nuts for example if the bolt sticks out more than a small amount off center.