Micro Seiki Pulley PSS-1

I am using Micro Seiki PSS-1 pulleys on my Micros. Does anybody know if MS offered different pulleys for the 8000 or 5000 series?
Thuchan, there is one more pulley type which came with one of my SX8000's, you can drop me a mail at: hippie.delic@gmail.com to send you the photo. I am planing to mill few of them soon.