Thank you for viewing! ◎ I hope this power stone will encourage you in some way. ◎ If you are interested in this stone, or if this product has caught your eye, I believe it is fate. Indian Jade: Approximately 8mm Crystal: Approximately 8mm Purified. Inner diameter: Approximately 15cm Uses transparent (4-ply) Ope-Ron rubber. Indian Jade: It is said to be a stone of relaxation that heals tired hearts and relieves stress. It is also said to be effective when you need to make a calm judgment or want to concentrate. Crystal: It is said to be a power stone that is compatible with anything. It is said to be a stone that wards off evil and brings good luck. Crystal symbolizes purity and innocence, purifies the mind and body, activates vitality, and awakens potential and talent. We look forward to your purchase if you understand that this is handmade. Also, as natural stones are used, please understand that there may be variations in color and shape, distortions, cracks, and inclusions.