1930s Box of 6 x 6" long Lady Ann fabric covered Hair Curlers

Found in an old warehouse - Original unused 1930s curlers.
They are 9" long, very bendy and covered in a soft woven fabric.
Seems as if they would be much kinder to hair than the frightening metal ones from the 1940s and 50s.
There are 4 of them in the original box.
Made in England.