12 bakelite brown buttons moulded to look like threads woven into each other ...
They come on a display card - measuring 8.5 by 11cm.
Printed on the card is "Washable and Ironproof" - as well as "Made in England"
I have 3 sizes - either 1.4cm, 1.7cm or 2.2cm.
They have a single integral shank on the back.