Case of 250 Jiffy 0 size mailers. The outside measures 6 x 10 inches. All made in USA from kraft paper with recycled paper padding inside. Please note that these DO NOT have the adhesive strip seal at the end and you will have to use staples or tape to seal the end. They are not self sealing. I usually fold over the end and use 4 regular staples in the end and cover the staples with regular packing tape. The last four photos show how I usually do it when I use these mailing bags for my own shipments. It doesn’t take very long and works very well. Shipped by your choice of UPS ground or Priority mail. If you want UPS shipping you cannot order more than one case of these at a time. Two cases together weigh 54 pounds and UPS has a $25 extra fee for anything over 50 pounds. I no longer sell more than one case at a time since there is no way to easily get two 27 pound boxes stuck together. If you want to come here and pick them up you can get 5 or 10 cases or more. The inside takes up to 5 1/2″ x 8 1/2″ with room left to fold the end to seal up with staples. I like these because you can fold an 8 1/2″ x 11″ piece of paper in half and it just fits inside easily. These are nice for small paper Ebay items like photos, post cards, tickets or small ephemera items that you don’t want bent up or damaged. They have more stiffness to resist bending up than the latest style poly or bubble mailers do. Your item will arrive at your customers door with less damage than the flimsy cheap stuff you usually get today. They work well for small parts that weigh about two ounces and still can go for the 4 ounce minimum First Class postage rate.