These came on a bass I got in a trade deal recently. only 3- the A string is missing.
They are black roundwound strings. I dont know any more about them, seem to be medium gauge and pretty well used (black has scratches) however they have some zing so arent dead.
If you use DR black beauties or similar maybe these would be good for a spare in the event you break one.
$4.50 and they are yours, which basically covers shipping to the CONUS.
Will also trade for a standard strap handle metal edge cover in black.