pulley 28mm or dnd

I used this for this ship (https://makerworld.com/en/models/377175-small-pirate-ship#profileId-277059) so I could give it a sail that can be unfolded or folded easily.There are two pulley's in the file. One to be used with a bead inside, and one that's ready to go, but it has no moving parts. The photo's are of one with a bead, I pushed a copper wire throug and glued some diamond painting diamonds to prevent the wire from falling out.