These crystal-clear, acrylic plastic library shelf backstops are a sleek way to keep books and other media where they belong. Place the backstop where you need it to align your collection precisely on your library’s deep shelves. You take the time to organize your library shelving in an attractive, easy-to-browse way; these modern, minimalist backstops can help keep it that way no matter how hectic your space gets during the day.
 
Economy Adapter: Place this “block” behind books and media to keep items at the front edge of shelving.
 
Crystal-clear, acrylic plastic construction