i was looking for a new bookend and thought this looked like it's be good. however, because of the way it sits when folded out, it actually takes up quite a bit of space on the shelf. I have limited shelf space and really needed something that'd take up the minimum space. it does slide under the books at the end to hold it up, so i think it could easily have been designed without the extra plastic taking up space at the side. they are also pretty expensive considering you only get 1 bookend, and it's just made of plastic, but i guess it does the job.