Plymor 9" x 12", 2 Mil Zipper Reclosable Plastic BagsWhat size bag to order? Measure your item by its width, height, and depth because the plastic bag needs to fit all the way around it. Item width + item depth = bag width. Item height + item depth = bag height. Add an extra 1/2" to the bag width for the item to fit through the zipper opening.What is Mil? "Mil" is the plastic thickness. 2 Mil = .002", slightly thicker than the standard sandwich bag.Are the bags food safe? Yes! Because our reclosable bags are made from virgin LDPE (low density polyethylene), they meet FDA requirements for food contact and storage, and are BPA-Free.How to open and close? For your convenience, the bag's top lip is offset, making it easy to separate the sides and open the zipper track. Separate the two sides of the bag's top lip and use your thumbs to gently pull the zipper track apart. To close, pinch together one end of the zipper and slide your finger and thumb along the zipper. Remember to squeeze excess air out of the bag as you close the zipper.How to use the bags? Our 2 mil zipper bags are extremely versatile and practical for a variety of purposes. They excel in storage, perfect for organizing items like jewelry, screws, crafts, office and supplies, food or candy for resale, game and toy parts, and clothing or fabric. They are suitable for transportation, whether for shipping goods or organizing inventory. Perfect for hobbies and DIY projects, they keep small parts or tools secure with their resealable feature. Overall, these bags provide practical solutions for storage and organization.