Dimensions: 8 mm × 8 mm. Materials: stainless steel. All accessories of necklace are made of stainless steel. This is a great choice for someone whose skin is sensitive to metal. Also, it will not turn your skin green or any other color and it doesn’t rust or fade! Jewelry arrives in the white gift box, ready for gift-giving. Shipping includes a tracking code so you can track the path of your parcel. I send parcels on Tuesdays and Fridays. DELIVERY TIME 2-8 WEEKS.