This Aromatherapy Locket is the perfect place to tuck in some crystals, beads or an aromatherapy pad! This opens easily but closes securely. It is made of brass with an antique gold or antique silver finish and is nickel and lead free. These measure 35mm X 21mm bail included and the bail will easily accommodate up to a 4mm wide chain. Without the bail the birdcage itself measures 30mm X 21mm.