This is for a complete rear wheel (your choice of silver or black) including brake rotor, sprocket carrier, sprocket, cush drive rubbers and all 3 spacers. You will have your choice of the following sprockets, all with about the same amount of light wear except the 525-43 seems a little more worn than the others:
525
Sunstar - 44-525 - silver - 44
Unknown - silver - 43
520
PMP - SO650 - black - 46
PMP - SO650 - black - 47
Vortex - 528A - black - 46
Vortex - 528A - silver - 44
Vortex - 528A - silver - 43
$150, Price is for local pickup, shipping is extra