Three 1960s Hi-Style Hair Clip / Barrettes.
The big one is 9.5cm long and 4.5cm tall.
The two smaller ones are 6cm long by 2.2cm tall.
The last picture shows the backs - and the fixing mechanisms.
They were made by Tip Top Products co, in the USA and have a little seal at the bottom claiming they are guaranteed by
Good Housekeeping magazine.
I have them in tortoiseshell, red or pink.