Formulated to be used outdoors, each stick will help you enjoy outdoor entertaining for up to an hour. Citronella is a proven, all-natural insect repellent made from the lemongrass plant. It repels insects by masking the smells biting insects are attracted to. Citronella Sea Salt Outdoor Incense features: Hand-dipped in the USA 50 sticks One-hour burn time per stick Paper canister with wood lid