It's as simple as it sounds - its insides are many slots for your picks and the wallet itself is not huge or bulky. It's not the thinnest thing, but it's something that would easily carry a lot of picks and that can be fit in your pocket, bag or wherever. I can't tell if the leather is super high quality, but it looks and feels solid. The button which holds it closed is a magnet.
I can only think of two downsides to this wallet. The first one is that if you have picks which are not regular size (meaning 2mm+ thick or just larger in length or width) it may not fit in very easily. I have a 2mm pick and a thin (0.5mm) but large triangular pick (Tortex makes such picks. You can look up "Tortex Triangualr Pick" and you'll see what I mean) and I fit them both in, but with a little bit of effort. The second downside is that it doesn't hold more picks! Ok, that's not really a downside, 24 slots are plenty. All in all, satisfied with the wallet!