EUDORA Aroma Retro Iris Lava Aromatherapy Essential Oil Diffuser Necklace 24" Chain, 7PCS Lava Beads AROMATHERAPY DIFFUSER - Special Offer for the coming Valentine's Day. Silver plated copper locket make it safe for personal using. 24" stainless steel chain will be a perfect length to feel the perfume. HOW TO USE - We suggest add 2-3 drops of your favorite essential oil onto the lava stone or difussing ball, then you can enjoy the aroma that belongs to you LAVA STONES - 18 mm Round colorful lava balls provide the best way to diffuse the fragrance of essential oils on the go, porous, easy to diffuse. Also fit for other 18mm/0.71 inch in diameter harmony ball cage. GIFT IDEA - Best Gift for Mother's Day, Mother's Birthdays, Grandmother's Birthday, Christmas, Valentine's Day, Anniversaries, Thanksgiving Day, Personal Daily Wearing or Special Occasions. GUARANTEED SATISFACTION - Come with cute gift box(gift wrap). Free shipping for orders over $9 and sent out within 3 days via USPS, usually takes about 7-15 business days. Also provide DHL express services. Email us for any question please.