I bought this because I have several pens that clog all the time, had bought some pen cleaning solution, and had seen a nifty video showing a pen in the cup soaking in it. When I got the product I was immediately disappointed opening the box. It is a little plastic cup. My very first thought was I can't believe I spent that much money for this. It looked like something you might get at a fast food restaurant that you would throw away at the end of the day. This is not a swipe at Goulet's, it's just a statement. Especially with the shipping costs, I was annoyed at myself for having made the purchase. In addition, I was worried that the base was too narrow so that a heavy pen would topple over if I put it in there. Nonetheless, I brought it to work and immediately found a use for it. My Metropolitan Vanishing Point had fallen off my desk on a radiator and been baking for who knows how long. I filled it with cleaning solution, filled the cup, and stuck the pen in. It worked great. Much to my surprise, it was very stable. Because it is so narrow, the pen holds fairly vertically. This not only means ink/cleaning fluid is always around the nib, it means the center of gravity is over the base so it's not tippy. The weight of the liquid adds to the weight of the cup. The small diameter means you're not wasting cleaner. If you use it for ink, you can fill very efficiently. I still think the base could be a tad wider.So it works great and I am not sorry I bought it. It did take using it to get to that point though.