Minigrip Greenline 3" x 4" 2 Mil Biodegradable Bags are an "earth friendly", sustainable solution to traditional bags. These 3 x 4 .002 biodegradable Zip Locking bags feature impressive clarity and make storage and organization simple for industrial, food service and medical industry applications. Every 3 inch by 4 inch 2 mil eco friendly zipper bag meets ASTM D5511 standard for testing and proving the biodegradation of plastic materials under anaerobic landfill conditions.