The Xezo Golden Gate series of pens are individually numbered, and produced in limited editions of 1,000 pieces per style. They are handcrafted using selected panels of naturally iridescent mother-of-pearl and abalone shell. The unique color and texture of each mother-of-pearl and abalone panel ensure that no two pens are exactly alike. The idea of using these beautiful materials originated from observations made of the sky's colors reflecting in the waters of San Francisco's Golden Gate Strait during sunrise and sunset hours. In addition, the design of the each pen's handmade and curved clip was inspired by the towers of the Golden Gate Bridge.Distinctions and variations in texture of the natural materials are not defects, but rather natural attributes which add beauty and uniqueness to each of these handcrafted pens.