I really can't find even a hint of anything that needs improving. This is so simple, yet it's the Swiss Army Knife of guitar tools/accessories. This thing is so good I bought 3. I think I'll keep adding them to every Thomann order, to keep one in each guitar case.
I love that the colors are chosen at random, so it's fun to see what color I'll get (I know, I'm a kid at heart, still looking for prizes in my cereal boxes). It turns so smoothly, and doesn't seem to loosen over time. It grips well, on both ends. I like the multi-function use -- popping bridge pins, tuning, string winding/unwinding, and tightening 10mm hex nuts, such as on tuners.
It's well made, nicely packaged and it looks good. The bright and bold colors makes it easy to find so I don't have to search for a while.
Well done.