Conforms and adjusts easily to bound edges and uneven surfaces and is used to repair damage to spine hinges on the inside covers of books. 
Very easy to use. 
Simply cut a strip the length of book, remove paper release liner, fix to top section and gently place along the length of spine between the spine hinge and book cover. Fix into place. 
The result is a professionally repaired spine hinge which not only looks good but also helps to keep books in circulation for much longer.