This very simple pendant is solid sterling, 2.5” long (5mm in diameter) and hangs from a 16” sterling snake chain. (Also available in 18”, 20” and 24” – to order a longer chain, find the item “Comet Necklace – Chains”.) It has a very slight curve so that it hangs nicely on the body. The Comet Necklace is very versatile and looks great on everybody.