J.I's Mouse Deodorizer - Eliminate Mice and Their Smells - 4pk Used To Eliminate Mice And Their Left-Behind Smells Perfect For: Stored Vehicles, RVs, Boats, Small Sheds, Cabinets, Toolboxes And Chests, And Any Enclosed Indoor Area Non-Toxic, Non-Poisonous - Just poke the pouches to active this scent-based formula Comes in a Pack of 4, Lasts 3 to 6 months depending on airflox