WTK: SKS mag value

I have 3 SKS magazines, one is steel and two are synthetic, and also a spare cleaning rod for an SKS. What would these items be worth?
They are all 30 round mags.

http://img.photobucket.com/albums/v220/Sadgeon/DSCN1304.jpg

If they function well,I would say $20 each

Sweet, thanks!