Our 4" x 6" Blue Zipper Bags are used to seal standard weight products and are the most popular thickness for parts, clothing, food storage and more. Our 4" x 6" 2 Mil Blue Reclosable Bags are made from low density polyethylene and can be recycled. These blue Reclosable Plastic Bags are blue on the front and the back and make storage and organization simple for industrial, food service and medical industry applications. 4 in. x 6 in. Blue 2 mil zip top bags meet FDA/USDA requirements for use in food packaging and storage applications, 1000 per case. Tints and opacity of colors will vary from lot to lot. These small blue Zip Locking bags are also known as apple baggies. Blue 4 x 6 bags are often used by dispensaries as small exit bags.