Made with A4 design paper. These are handmade envelopes. There are 10 sheets. I am also selling on other sites, so I may delete the listing without notice. Please consider purchasing as soon as possible. Each one has a different pattern. These are one-of-a-kind, so I can't make the same ones again. As these are handmade, the sizes vary. Please understand. I have other items for sale, so I hope you'll take a look. Please purchase only if you understand that these are handmade items!