Which mail type also allows for 70 pounds of weight?

Media Mail is a specific mail class designed for shipping educational materials, including books, printed music, and media like DVDs or CDs. The key aspect of Media Mail is its weight limit, which allows packages to weigh up to 70 pounds. This makes it an economical option for sending heavier packages that fall within the allowable content types.

The other mail types do not have this same weight capacity or are intended for different types of mail. For example, Parcel Post is used for shipping packages but has different weight requirements, and Standard Mail is used for bulk mailing of advertising materials and similar content, which are typically not as heavy. Library Mail, designed specifically for sending library materials, also has weight restrictions that do not reach 70 pounds. Therefore, Media Mail stands out as the correct answer for being able to accommodate up to 70 pounds.