DampRid Drop-in Tab Refill Pack contains two 15.8-ounce moisture absorbing tablets. When paired with the Reusable Moisture Absorber Starter Kit, they attract and trap excess moisture and eliminate musty odors. The 360-degree ventilation system enhances airflow, making it our fastest acting moisture absorber. To use, simply insert an unwrapped tablet into the top of the moisture collection unit. DampRid absorbs moisture without use of electricity or batteries. Blends in with any home decor and can be used discreetly in various locations. Place these moisture absorbers in bathrooms, basements, utility rooms, garages, laundry rooms or storage lockers – anywhere damp, stagnant air is a problem. DampRid Reusable Moisture Absorber with Drop-In Tab Starter Kit is sold separately. Refill tabs are available in Fresh Scent and Fragrance Free. Keep out of reach of children. Read and follow all label directions.