LONGWIN 40mm(1.6 inch) Fengshui Crystal Ball Healing Crystals(Black) Material: K9 crystal, lead freeit's solid and translucent, without impurity and no bubbles. The crystal ball measures: 40mm(1.6 inch) in diameter. Come with a free small crystal stand. Great for collection of feng shui items, divinations and meditation purposes. Would be a great photography prop, and a cool magic prop. Also great items for home and office decoration.