These are great looking wide-range 9 speed cassettes. We bought them in the early Hillibike days but never used them, probably because we didn't know what derailer to pair them with for friction shifting. They're here and discounted from their regular retail price, but it's on you to figure that one out. The Shimano Essa rear derailer we sell will likely work, or you can just get indexed stuff. 

These come with a thick spacer that almost looks like packaging, but it isn't. You need dat. Slide it on the freehub body before the cassette. 

Cogs: 11-13-15-18-22-28-34-40-46

Sunrace calls these the CSM983

554 grams