This is a surgical stainless steel necklace. It's less likely to cause allergic reactions, even for those with metal allergies. I also have metal allergies, such as nickel, but this one didn't irritate my skin at all and I was fine. I've worn it about twice, and since it didn't really suit me, I've been keeping it at home. There are no accessories. The photos show it at its longest length. It can be made shorter, so you can also wear it like a choker ^_^ It will be wrapped in bubble wrap and shipped via post ^_^