Very odd but interesting non electric hair drying cap.
Instructions included
Dryette Wonder Cap Oven Heated Hair Drying Vintage Beauty Shop Vanity Haircare
I think this is a collectible not for use.
Special cap made by Haircare Inc. you would put in the oven and heat up within safety specifications and put it on your head after you washed your hair.
Claims it will cut hair drying time in half.
The cap is made of cloth with sewn sections or chambers that are filled with bead like material.
A very interesting & unusual vanity beauty collectible.