For many years I have been using Palo Album pages for my Korean stamp collection. They are based in the USA and have very high quality pages, albums and album slip covers. The pages are five holes punched for their album binders. The pages are about 11 x 12 inches long. They have excellent standard Korean pages that are printed in color. They use Davo mounts for the hingeless pages and they come in clear for the colored pages. You can also get pages with the black mounts.