This is the ORIGINAL, often duplicated and remixed, beehive frame hook! I originally posted this on Thingiverse in 2015: Beehive Frame Hook by ckcampbell248 - Thingiverse

Conveniently holds two frames out of the hive body during an inspection. Much better than having them on the ground!

These hooks are also multi-purpose. They will hang over any 3/4" edge.