Quantity: 10 sticks per box. Total 120 sticks in an outer box. Burning time: 75-80 minutes. Total length of stick is 12 inches.this herbal product enhances the quality of your life. A very effective mosquito repellent. These incense sticks burns for around an hour. Wind may vary and reduce burn time. There is no inhalation toxicity, no pollution and is 100% organic, 100% herbal safe for children and environment.