Humidity Sponge Indicator Desiccant Bag Type Tyvek(R) Bags Area Protected 476 cu in Width 3 in Length 3 in Desiccant Bag Size 3/8 oz Container Type Bag Bags per Package 40 Humidity Indicator Form Sponge Humidity Levels 37 Percent Indicators per Case 40 Application Humidity Detection Material High Density Polyethylene Color Blue Diameter 1/4 in Package Quantity 40