This diffuser for essential oils, ambient perfumes & perfume grains has been individually hand made & all the glazes used are lead free. It has been produced by Flame in Auroville, an international community in Souther India near Pondicherry. The refined product of the artisans reflect a merging of Indian & Western influences from theis region long settled by the French. Hand Made in Terracotta by expert artisans in Auroville & given a suble & antique finish. Directions for use: Fill the bowl with water & add to it drops of essential oills. Light & place a tea-light in the cavity under the bowl. Do not diffuse oils without water & do not leave the diffuser unattended.