I have one that I purchased from a yarn catalog, it is made of canvas and has a fold over top with Velcro and I put it around a heavy plastic hanger. There was a needle measuring tool with it also. I don't remember the name of the Company that I purchased it from, but it does have "the Circular solution" on the top, and it is holding all of my needles, except one I am using at the moment.
I bought one similar to this. I bought mine from Della-Q....at quilters mart. They also sell them at Webs online.