From the broken antique glass and bottles reclaimed from the woods and farmlands of rural Pennsylvania The broken remains of vintage mason jars, Noxzema jars and ruby and green beer bottles have been hammered, then fired for gloss and texture and jingle inside the petite 1/4" cages. A light and airy way to recycle Cages are silver plated brass, ear wires are surgical steel. Each piece of Bottled Up Designs includes "The Story of the Glass" detailing the history and age of the glass used.