Whirl-Pak B01350 Scoop Bags - 18 oz. (532 ml) - Box of 50

For fast, convenient sampling of a variety of materials, the Whirl-Pak. Check Out For Nasco B01450WA Whirl-Pak® Stand-Up Bags - 42 oz. (1,242 ml) - Box of 2  Also, check out Nasco B01027WA Whirl-Pak® Bags - 42 oz. (1,242 ml) - Box of 500