The Living Natural Essential Oil Refill in 21ml size features a relaxing Herbal Pine Amber scent, perfect for aromatherapy in the bedroom. Made of glass and sourced from the United States, this scented essential oil is suitable for adults and can be used with a diffuser for up to 2 weeks of continuous fragrance. With its original scent and high-quality materials, this product is a great addition to any home for a calming and natural fragrance experience.