100 x soft plastic dust sleeves with adhesive seal flaps. These are meant for smaller paperback books.
The
maximum
book size that would fit in one of these is:
Height: 19.5cm
Width: 13cm
Depth: 1.8cm
Of course this is fairly flexible. If you have a shorter but thicker book then the above dimensions, then it would most likely fit too.
Artwork and spine are still visible with these sleeves on.
Seal is reusable if you wish to take out the book.
Please note that these are soft plastic sleeves, not hard shells. They will protect the book against dust and moisture.