Manga Graphic Novel SLEEVES.
5-5/8 x 7-3/4" 2.5 mil Polyethylene.
1-1/2" flap.

While I did not order these, I did receive one of this size in my order by mistake. If you are looking to store standard size manga (most Tokyopop, Viz, Del Rey), this is going to be too small. It works for the "pocket manga" that Tokyopop released, including Cardcaptor Sakura and Peach Girl. It also works for the very skinny standard size manga, like "The One I Love" by CLAMP, although it's snug. The weight of this product is solid, it feels durable. The flap does not have adhesive, but a piece of scotch tape works well to keep it closed. Overall, I recommend it, just be sure you're getting the right size for your collection.