I ordered the brushed nickel rings.  They do the job and look fine because they are close to ceiling level.  They feel cheap, but look fine.  I gave them three stars because I don't think they are worth the price.  If they were perhaps $10-$12 for a pack of seven then I would have given them a 5 star rating.  When one considers that heavy duty knobs are around $3 a piece they price for these seems excessive.