Yu is considered to help a person in contact with it . Yu said , in order to improve the feeling of cool , clean thoughts, quiet the mind and induce a meditative state . It has also been led to believe that growth often deal with more beautiful luster of jade . According to a Chinese proverb , "Jade is cool because it comes from a clear mountain stream essence ." Science " says Jade is a cool feeling, because it is a non-conductor . Many Chinese people believe that a jade stone , eventually become part of life, its owner. Yu said that changes color depending on its own aura. Or depressed when he or she may be a darker shade of jade . If we 're lucky, the stone may be a lighter shade . It is also believed , jade pieces broken or damaged, it protects its holder from an evil and harmful events. Product Details Handmade : Yes Condition: New Material: green jade + + + + AAAAAAAAA Size 20 carved beads, each bead approx. 10MM * 10(H) * 10 mm ( adjustable string , suitable for all people ) . Weight Approx . 55 g Chargeable Weight 100 g (S / H fee calculation ) Shipping / Handling : International shipping standards ( 10-18 Days Delivery ) Natural materials , natural colors. Perfect hand , as shown in the picture. Preferential policies : international shipping standards: 10-18 days to deliver to you Yes, we provide tracking number , so you can keep track of all the information . Registration : All our packages will be shipped with online tracking number by registered mail Thank you for reading , if you have any questions, please contact me. ......