This listing is for the vintage marble pendant pictured. It is a new pendant made using a vintage Uranium glass marble and new silvertone components. It comes on a 25 inch silvertone ball chain but could be worn with most any chain or cord up to 4mm. The marble contains Uranium in the glass and glows really nicely under blacklight. This marble is burmese pink colored with a large focal swirl. It is a one of a kind vintage marble. Thanks for shopping my closet. I ship quickly and pack my orders with care.