ase Modules are all-purpose modules featuring a clear vinyl central window for easy identification of contents and dual zippers for use with equipment seals. Designed to fit securely in the lid of the CORE Backpacks (32501, 32501-O2 and 32503), the Backpack Plus (32470, 32470-MIDWIFE), the Ultra Roller Pack (32475, 32475-MIDWIFE) and the Ultra Backpack (32440), they can be used with any pack or bag constructed with hook and loop. Available in Red, Green or Blue Universal Precautions or 1000D Nylon fabric, order separately in any color combination to organize anything and everything that fits.