Design Celtic Knots is the Irish traditional symbol of eternity, Whether this means loyalty, faith, friendship or love. once it starts, it never stops. material Made of high-quality hypoallergenic 925 sterling silver , anti-tarnishing, nickel-free, lead-free, cadmium-free, suitable for long-term wear, without any allergic elements, and is not harmful to your health Harm, will not harm your body skin Perfect size for almost everyone Irish Celtics Knot Moon Necklace: 0.88*0.87 inches (22.3*22.2 mm), chain type: 18 inches Rollo chain; chain width: 1.2 mm, this size is suitable for people of all ages: Grandmother , Mother and girl. Weight: 5.56 grams, this weight has been tested, long-term wearing will not make you feel tired, but it will reveal your beauty inadvertently Reliable Service XiaoJing use the high quality material, our aim is to be original, inspiring and meaningful. Please feel free to contact us if you have any problem about product, we''ll try our best to make you satisfaction. Thank you