Ikea Skadis continer hanger

These hangers were designed to work with the below food containers. I use them to hold keyboard switches and keycaps. The sides slip under the containers closing handles.

They were designed to utilize peg inserts here: https://www.printables.com/model/119811-skadis-universal-peg 

Containers: https://www.amazon.com/gp/product/B08SZ8RBZG/