Thin Metal Findings
We do not know the composition of the item as it was purchased a few years back from China and we do not have a record of it.
Some are marked and not sure if the oil has now dried.
I would be tempted to paint (spray or nail varnish) them with vibrant colours after a good clean.
The first number indicates how many are in a pack (approximately done by weight 5g).
The number at the end is the size in mm….along and up.
You can purchase 1 or 2 packs using the drop-down selection box.
The more you buy the cheaper they work out each.