Certified Nurse Assistant CNA Symbol Glass in Black Tile Pendant Necklace with Chain * FREE black colored ball chain size 24", which you can easily shorten to desired length * Our original created image is sealed under a 3/16" thick piece of glass * Pendant measures 1" x 1" w/out bale * Secure in a black plated tray for a beautiful work of art to wear Each pendant is it's own little piece of art. Please remove before showering or swimming since it can not be emersed in water, excessive water expsosure will damage the pendant also.