This is to hold and protect a Preciva brand digital angle finder/bevel gauge that I got off ebay so it doesn't get tossed around the drawer. It is a 1x8x6 size, and I split it in half and made connectors to glue on. I did add holes for ¼" dowel pins but I found they were not needed. The knob does sit higher than the stacking lip so bins will not stack over that spot, but I do not have room in the drawer I have it in to stack anything on it anyways.