This is an unusual yarn called Gold and it is from Adriafil and strangely enough it comes in silver! It is most effective as a trim - I have used it as a trim on gloves.
Here is a picture of both colours -
It comes in a 25g ball with 25m. There is no recommended needle size.
It was £5.50 a ball but now it is £4.00.
We have 11 balls of gold left in stock and 1 ball of silver.