Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to ship a package with ups [title] Choose the right box for the contents of your package. [step] Typically, packages are shipped in cardboard boxes. You can use your own, or purchase one from your local ups shipping center.

Ending1: Make sure that the box has a seal and is not flammable or hard, or the packaging could be crash-proofed by your carrier, for example. [substeps] For basic packages, you can use an unlabeled box, such as a standard bubble wrap box. Ending2: Find a box that can easily fit whatever you plan to ship with plenty of room leftover. The box shouldn't swallow the item, but you should be able to fit cushioning into the box. Ending3: Cardboard boxes come in a variety of colors, shapes, and patterns, which makes shipping easy. [substeps] Labels recommend that you avoid boxes with flaps, which pull down and are difficult to gently replace. Ending4: If your package is tin or paperback, consider getting a sturdy box. Thicker boxes containing only tin or paperback varieties may pose a contender for ups because of their heavier containers.

Answer format: ending1/ending2/ending3/ending4