Noctilucence Glow Beads Love Heart Wing Locket Pendant For Aromatherapy Essential Oil Diffuser Necklace Package includes: 1pc locket+1pc necklace+2pcs glow bead+7pcs Pompon Main Material: Environmental copper; Color: Gold Locket size: 27*28*17mm; Chain length: 31" approx With 2 glow beads. Note: The beads can't glow by itself. Just put the beads under the light let it absorb. Under the sun or lamplight. Both are OK. Longer time, brighter beads. You can wear your favourite Essential Oils everyday with this style necklace