These are small drawer dividers. There are 2 models. One for the drawer
cabinet sold by Canadian Tire. The other one is for drawer cabinet sold by
Home Depot.
They can be printed without support.
This object main web page is:
http://www.ctheroux.com/drawer-dividers-for-small-parts-cabinet/.
You can request the source files on the page listed above.
The author marked this model as their own original creation. Imported from Thingiverse.