Can someone tell me how to use these, please?

[Dilbertian]

I'm pretty sure they're some kind of hair accessory, but I can't figure out how to use them.

Any ideas?

https://www.velondon.com/products/french-crab-interlocking-hair-clip-side-comb-barrettes-clips-styling-hair-claw

I’m not sure the picture makes it clearer tbh but they are hair things.

Maybe I'm trying to gather too much hair in them.