Sterling Silver Box Chain Necklace 1mm with lobster claw clasp Nickel Free Italy, Sizes 16 - 30 inch Made with flat wire, Box Chain is Square Shape, Light weight but a Very Strong Silver Chain Solid Sterling Silver Made in Italy with excellent quality Newly Developed Tarnish Resistant Coating will Keep this chain shiny for a long time NICKEL FREE Hypoallergenic This is Box Chain is strong enough for most pendants about I inch in size, Comes with Lobster Claw Clasp