Shimano 7 speed cassette, 12/32. HG200. Looks pretty good, but I can't guarantee that it would take a new chain as untested, but would be fine in a part worn system. £10 posted
Hayes Sole hydraulic disc brakes from around 2005 or 06. In poor cosmetic condition, please see the photos. Untested as pulled straight from a retro MTB to upgrade to a modern brakeset. They look to be complete (except a bleed nipple cap) and appear to work but listing as spares/repair/parts...