Knock Knock Personal Library Kit (15000) For a bibliophile, there's no greater pleasure than sharing beloved books, but no crueler pain than losing them for good-until the Personal Library Kit Revive old-fashioned library circulation techniques for fun and book retention with our classic bestseller The perfect gift for the generous reader Even better looking 6 x 7.5 x 1.25 inches; 20 self-adhesive pockets and checkout cards; date stamp and inkpad; pencil