Fits either way across dividers, or 4-way dividers like this: https://www.printables.com/model/422547-milwaukee-slim-packout-bin-cross-divider

Bins can stack and still fit inside a closed packout.

Print standing on the side with a brim. no supports needed  

The lids swing out of the way when not in use.

Other packout bin lids:

• Tall/deep square bins: https://www.printables.com/model/423413-milwaukee-packout-tall-square-bin-lids 
• Shallow rectangle bins: https://www.printables.com/model/428259-milwaukee-packout-low-profile-long-bin-lids  

Available on Etsy