Lovely 1930s Display Card of 4 Flexible Fabric Covered Hair Curlers

Gorgeous 1930s display card of 4 hair curlers.

They are made from a very flexible metal covered in a soft woven brown fabric.
They are 6" long, so 3" when bent in half.
 Seems as if they would be much kinder to hair than the frightening metal ones that come later and perfect for creating vintage hair styles - using vintage tools !
The instructions, with diagrams, on the card says
"Place hair in centre and roll towards the head and finally bend both ends of curler over to secure"
Most of the cards are in good condition, a few have some wear from their long years in storage (see last photo) and these are a bit cheaper.