Gridfinity 3x6x4 - Harbor Freight Wobble Extension

I grew tired of having my wobble sockets roll around in my tool box, so I created a 3x6 gridfinity tray to keep them in place. The tray is tall enough to keep pieces securely in place on a tool cart, but shallow enough to fit in the 35mm drawers of most tool chests.

https://www.harborfreight.com/wobble-socket-extension-set-9-piece-67971.html?_br_psugg_q=wobble+extension+set