They are not really great quality rollers, the first time I saw a pair I thought somebody just put Cinelli decals on some cheap rollers. Definitely not up to usual Cinelli standards.

I sold a pair on ebay back when things were good for about $150. They were well used but the decals were all present, as were all the rubber end caps and feet.

I would think only an NOS set would bring really good money from a collector.

If you want rollers to ride do not bother with them.