This is a vintage item, unused and still in its original box with instruction leaflet.
Made in England, probably in the 1970s.
Made of Lightweight elastic yarn (Nylon 75%, Elastodiene 25%), and intended to give graduated support for the treatment of varicose veins.
Note: these stockings are about half a century old.
They were designed to help treat varicose veins, on medical advice - but they are not modern.
If you have varicose veins, please consult your doctor - and use MODERN support stockings.