Bali 925 Sterling Silver Emerald Cut Peridot Poison RingNew 925 Sterling Silver Poison Ring with Emerald Cut Peridotin the center on a round box.Ahidden boxsits on top of the ring witha functioning lidto hold small objects or in ancient day, a small amount of poison. (Poison not included) The rings have a latch to keep the lid close. These rings are also known as Prayer Rings and Treasure Keepsake Rings.Material: 925 Sterling SilverStone:PeridotPoison box OuterDiameter:Length: 7.5 mmStone Width: 4.5 mmWeight:3.2grams weight may vary based on sizeBand Width: 3.5mmSize: 6,7,8,9,9.5,10,11Add each size separately upon checkout in the note to seller field.All measurements are approximate. All sterling is stamped 925 to assure Silver Content.