These are clips to attach things / projects to flat webbing. One side is closable allowing easy attachment and detachment from webbing on packs, clothing, etc., and it closes securely and won't slip open under reasonable load.
There are two versions of the clip. The small clip has a 0.75 inch (20mm) wide hole, and the large version has an inch (26mm) wide hole.
To close the clip, attach it to the webbing and squeeze together at the curved indentation.
I printed these in PETG for a bit more durability than PLA and they lasted a multi-day backpacking trip with no problem. I suggest printing with 99 perimeters (or any other high number) for strength and durability. These clips were designed for 3d printing so the clips should print perfectly without supports.
The author marked this model as their own original creation.