I picked up the ":Craftainers" by Rubbermaid - I think at hobby lobby or Joans. Mine hold 25 spools each and have handles, maybe like the ones you have. I can stack more than 25 spools in there though. I have a broken latch on one so I need to replace it, but they work great for me. I have 4 cases. One lights, one darks, one brights and one pastels. I have similar but shallower ones for my embroidery thread.