Aromatherapy Necklace advantages: 1.Wherever you go? When? Aromatherapy necklace can help you alleviate stress and fatigue anytime and anywhere. It can relax your body and mind and make you happy. 2.Popular design, colorful refill pads, you can match any clothes. 3.A wonderful gift for women and girls on birthdays, Christmas and Valentine's Day. 4.Strongclosures and solid back insure you never have to worry about getting oil on your clothes. 5.High quality stainless steel material, very solid and indurate, you do not have to worry about its quality problems. 6.We recommend that, one essential oil for one time, to avoid flavor smell mixing.