Fil-Tec, Inc. 製 糸ケースの蓋

The fact that these lids stack vertically is a game-changer for organizing my workbench, and each one securely holds ten cones without wobbling. Got two more on the way to finish my setup.

I needed extra capacity for my thread storage, and stacking these lids let me double the vertical space easily. The ability to add more layers is genius for small workspaces.

Fits perfectly onto the layer I already had, and the lid snaps on securely so threads don't shift around during storage. Stacking another case layer on top is straightforward, though I wish it came with the layer included for the price.