Package Includes: 1 set of bookshelf risers of different sizes, consisting of two main bodies and two pcs of inner liners of different sizes Maximize Your Bookshelf Space: our manga shelf risers are the ideal solution for comic book collectors who store their comics in two rows; Its design allows you to raise the rear shelf, making every book easily visible; This fully utilizes the existing vertical space and easily doubles your shelf's display space Flexible and Adjustable: the two bookshelf risers have different cross sectional dimensions and can be combined to flexibly adjust their length based on the size of your bookshelf and the number of books you need to store Sturdy Construction: our raised bookshelf is made of PP hollow board, ensuring a sturdy surface; Each cardboard box contains four inner liners, which form a stable Z shaped structure with ease; It's an ideal choice for book lovers: it transforms your bookshelf into a stylish display platform for your entire collection; Show off your collection; Besides books, this shelf is also perfect for displaying figurines, collectibles, and more Ideal for Collectors: it transforms your bookshelf into a stylish display platform for your entire collection; Show off your collection; Besides books, this shelf is also ideal for displaying figurines, collectibles, and more.