This keychain is made from pure grade A K9 crystal glass. Our design team molds a 2d animated model into our laser software for a picture perfect engraving. The industrial laser carves and replicates the finished mold catching every detail of your favorite characters. The keychain is shatter/water resistant and comes with a metal chain with battery pre-installed. The LED light changes between many colors and changes speeds. We include an extra set of batteries and a custom souvenir gift box to store your crystal keychain in or to give to a loved one. Easy twist on/off power options for our customers convenience.