Having been interested in this type of chain for a while now, over a yr.  Finally caught a good price & took the plunge.  There is a dull sheen on the chain, but the rest is shiny.  The adjustablity works fine.  In fact I find it fun!  I do not recommend user to adjust while wearing it.  Not recommended for children, choking hazard when they play around with the adjustability.  Can be cinched up to be dangerous while wearing.  Bought this chain and the wheat chain.  Goes well with my pendants.  Great gift to adults.