Each BugPellent pouch will refill two casings.Directions For Use: Remove BugPellent from service While holding the BugPellent upright with the cap on top, turn BugPellent cap counterclockwise to to align cap with slots on casing Empty spent BugPellent pellets into a sealed plastic baggie or container and discard appropriately in household trash Open resealable BugPellent refill pouch by tearing from the notched edge Scoop BugPellent pellets into BugPellent casing, filling to approximately one-half inch from the top Do not compress the BugPellent material when refilling the casing Close cap and hang Wash hands after refilling or wear protective gloves BugPellent will last 4-8 weeks, depending on temperature and airflow Empty and refill the cylinder when a decrease in odor is observed or flying insect presence increasesActive Ingredients: Cedar Oil -- 4.82%, Rosemary Oil -- 15.00%, Clove Oil -- 10.00%, Citronella Oil -- 10.00%, Peppermint Oil -- 4.82%, Cinnamon Oil -- 4.82%, Lemongrass Oil -- 3.20%, Geraniol -- 3.20%, Linseed Oil -- 3.20%. Total active ingredients -- 59.06%Inert Ingredients: Beeswax, Carnuba wax. Total Inert Ingredients -- 40.94%