Moisture Absorber, Desiccant Bag Type Tyvek(R) Bags, Coverage Area 500 sq ft, Width 4 3/4 in, Length 4 3/4 in, Desiccant Bag Size 10 1/2 oz, Container Type Tub, Bags per Package 1, Number of Dots 0, Humidity Levels 55 Percent, Indicators per Case 4, Application Anywhere Excess Moisture and Stagnant Air Are A Problem, Bathrooms, Closets, Laundry Rooms, Pantries, Under Sinks, Material Calcium Chloride, Color White, Diameter 4 3/4 in