Backflow incense coin, Chinese traditional incense 20 pieces

We use time-honored methods to made these incenses. Using the pure natural raw materials. Didn't add any chemial substances. Thses incenses are made by our secret recipe. "Incense is used whenever calm and composure are required. It is said to aid in relieving nervous tension, anxiety, insomnia, fighting depression and aggression. It is said to improve blood circulation, arthritis, and enhance concentration. It is a powerful antiseptic, astringent and insect repellent." 20 pieceseach coin can burn about 20min