Greece Letter Pi Sign Lariat Necklace Back to School Gift (Silver)
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Material: MetalMetal type: Stainless SteelClasp type: Spring RingGem type: No GemstoneMaterial: excellent stainless steel pi charm, rhinestone alloy charm,. It's lead free and nickel free,hypoallergenic, it doesn’t rust, change color or tarnish.Size: chain length 18 inch with 2 inch extension.Stainless steel wire bangle diameter 60mm and it is adjustable, fit most people's wrist(accommodates wrist sizes 6-8).This necklace/bracelet features and a Pi charm - and makes a great graduation gift for a mathematician or scientist.The irrational number Pi is a mathematical constant, the ratio of a circle's circumference to its diameter, approximately 3.14. It has been represented by the Greek letter since the mid-18th century.The symbolism comes from the first letter of the word region ( Περιφέρεια - Periferia in Greek, Π - Pi) and has established itself internationally. In the Latin alphabet is represented as Pi when Greek characters are not available. Pi is also known as Archimedes constant. superb for everyday use. High quality materials and excellent craftsmanship ensure long-lasting durability.
