This is a very pretty piece and so glittery! Let's start with the chain. It is a 17" cocoon style chain which is a round chain in segments as shown. There is a lobster claw clasp that works perfect and is stamped 925 and also stamped "ster" on the attached tag. The chain is about 1.5mm in width. The sterling slide is in excellent condition. At 1 3/8" tall and 7/8" wide this sparkly piece has a beautiful design with a pierced front and ribbed sides and full of shiny marcasite. The back is open and the curved bale is stamped 925. The slide comes off so you can use it on other chains as well and use the chain by itself for a very nice simple look or add your own pendant to the chain to "mix it up"!