This is a combined products link, the other details are the same as each single bookcaseThe combined size is 53.15" x 21.65" x 64.57" ( 135 x 55 x 164cm) for two bookcases setYou can put these two or more bookcases together or separately, it's flexible.You can also freely combine our different bookcases in our store. The sizes of our products are all standard, making it very convenient for you to freely assemble and customize your home office as you wish.