The listing, SUSAN BATES Quicksilver Nylon CIRCULAR NEEDLES Size 8 / 16 inch has ended.
Up for bid are Susan Bates Quicksilver Circular Knitting Needles. They are size 8 (5.0mm) and 16 inch.
Quicksilver is a premium label from Susan Bates, and are gray in color (a special iodization process which makes Quicksilver smoother and more durable than aluminum needles).
These were purchased with other items at an estate sale, so I have to assume they have been used. However they appear like new.
I have never used circular needles, but if you do, perhaps this is a size you can use!