Besides books, you can also organize CDs, DVDs, etc.
Even if you remove it, the book next to you will not fall over.
Joints on both sides for connecting
If you insert a book from the front side, the stopper will raise and the stopper on both sides will hold items inserted so it won't tip over.
Even if you remove only one of these books, the stoppers will fall down and the next book will not fall over, so you can easily see where to return it.
Non-skid rubber feet on the back
Minimum Supported Height: 4.7 inches (120 mm) (4.7 inches (120 mm) or less, the stopper will not hit enough, so it cannot stand up).
Depending on the thickness of the stopper (0.3 inch (8.6 mm)), it may not stand upright.