Spiral steel ring. The color is not pure black, but a slightly gray-toned black. It has a glossy finish. Made of steel. Sturdy. Please check the size in the photos. There are some minor surface imperfections. Please check the photos. They are not very noticeable when worn. Will be shipped. Shipping is not available on Fridays, Saturdays, Sundays, and holidays. Thank you. - Material: Steel - Stone: Clear stone - Design: Open ring - Color: Black - Design: Open ring - Color: Black Thank you for viewing.