This is a 2-unit bin with 3 compartments for the Stanley 014725r organizer (25 bins). The model is print-in-place and uses bridging to manage the bottom of the bin. The handles slot into the lids and may need to be glued if they're too loose.

The lid hinges are a little tight, so try to persuade them open with a putty knife / scraper. They'll break lose with a little encouragement.