I accidentally bought two & I'm glad I did.
Regular clips annoy me so much. They rest oddly on the head, they slowly fall out, you have to readjust them often, and if you drive you can’t wear them without hitting the headrest. Not these.
Since finding these I have no trouble driving or with ANY of the above issues. They stay put! So important, and difficult usually without longer hair. So since my accidental dual purchase I’ve bought 3 more in different colors. My hair is fine, & shoulder length, the medium size is perfect.