I have been looking for a way to corral all of my desk necessities for some time now but I am one of those people that don't like things sitting on my desk. This is the perfect solution! For me, this holds all of my pens and scissors within reach while keeping my desk clear. When my daughter saw this though, she wanted one in her bathroom to hold all of her hair accessories. This was shipped with three vessels but I chose to use only two of them based on the space that I have at my desk. I love that these are expandable and you have the option to use as many or as few as you'd like. They are made of a sturdy pvc like material. I'm thinking that I would like to customize with some vinyl labels.