* Pendant is 5/8" High and 1/2" Wide * Weight is Approx. 4.1 Grams * 18" Box Chain Included * Nickel Free Sterling Silver * Marked .925 Intricate Celtic Knots weave together and form a three-leaf shamrock, the Irish traditional symbol of luck. This small pendant comes with an 18" box chain - both the pendant and chain are made of sterling silver.