Stainless steel anti allergy and enduring - long chain perfect for sweaters t's and dresses.  Not to large  "just enough" to add some pop.
 
Unlike other softer materials, it can withstand most daily activities without sustaining corrosion and scratches. Plus, stainless steel jewelry doesn't tarnish so it looks good even with minimal maintenance & lasts for decades they say - making it an enduring item. It's excellent for those who are allergic to certain metals or prefer to avoid silver and gold.
 
Overall chain length 30" + pendant - there's no need to fiddle with doing this up - it fits right over your head.  The pendant is removable should you choose to use the chain for another pendant.