This pendant is handcrafted from a 1" square tile of glass. Including the bail, it's total length is 1 1/2". The glass goes through an 8 step process beginning with adhering the image to the back of the glass, finished by attaching the bail. The back of the pendant is protected by application of a two compound resin that finishes to a resilient, tough coating. The necklace comes with an 18" silver tone chain with a lobster clasp, but if you would prefer another length, please let me know in the comments when you check out. This item is water resistant, but I would not recommend showering, swimming or other prolonged exposure to water while wearing it to prevent any damage.