Instruct: Classify the given Amazon review as either positive or negative.
Query: Acceptable, but expensive via mail order

The couplers work as expected and seem to be of fine quality. However I found pretty much the same thing cheaper at Wal-Mart (and no shipping costs). I could be mistaken, but the "gold" simpler refers to the color and not the material used for plating. Either way, even if they are gold(Au) plated this is not of value to me.