Package dimensions vary by release. Examples from the set include: 175 x 129 x 24 mm; 304 x 234 x 30 mm; 312 x 312 x 20 mm; 155 x 210 x 45 mm; and 148 x 185 x 35 mm.
Track counts vary across releases; examples include a 2-track single, 4-track releases, and 6-track EPs.
Reviewers commonly praise the visuals and included items—describing the album packaging, photobooks, and photo cards as cute, pretty, or high-quality—and often cite those extras as a key reason for satisfaction.
Common extras include photobooks; lyric or log books; multiple photo cards; stickers; postcards or posters; bookmarks; and other printed collectibles. Some versions also include small bags or additional inserts. Exact inclusions vary by release and version.
Some releases feature themed packaging such as drawstring-bag versions, cross-bag versions, and character- or artist-themed box editions.