CHAIN IS NOT INCLUDED - Available in Solid 10K & 14K Yellow or White Gold, or Sterling Silver, Size Reference: 17mm is the size of a US dime 21mm is the size of a US nickel 24mm is the size of a US quarter Color Laser is a patent pending process, color is guaranteed to last forever Color Medals can be worn in the pool, shower, etc. without affecting the image. We guarantee it. Saint Matthew, is a Christian figure, and one of Jesuss Twelve Apostles. He is credited by tradition with writing the Gospel of Matthew, and is identified in that gospel as being the same person as Levi the toll collector. He is the patron saint for Accountants.