Glow in the Dark Wolf Key Chain Howling Wolf and Moon Keyring Double Side Glass Ball Keychain Wolf Head Pendant Key Ring $ 4.26 Product information: Name: glass ball key chain Color: Silver Weight: 20g Material: crystal glass, alloy Specification: ball diameter 2.1cm, glass diameter 2cm, weight 18G (slight error) Package: independent OPP bag Product features: double sided glass ball design, crystal ball visual sense, transparent, lovely, interesting.