Does not fit sheet stamps only single. Stockbooks are simple bound stamp albums made of extra heavy card stock with strips to hold the stamps or other contents and interleaves to separate the pages. They are available in many sizes and colors, with hard or padded covers and either white or black card stock as the background. Strips and interleaves can either be clear or glassine. Clear strips and clear interleaves along with a slipcase to help protect the contents are typically found in our higher end leather stockbooks. Stockbooks are an indispensible tool for every collector. They are useful for storing stamps before adding them to pre-printed albums as well as for keeping duplicates and extra stamps for trading. They are also recommended for starting topical collections or for storing your most valuable stamps in safe deposit boxes. Lighthouse stamp stockbooks are unmatched for consistently high quality.