Metal invisible concealed bookshelf Set of 2 (yellow) Product Dimensions:5.5*5.1*1.5in Package included: 1 Set of 2pcs bookshelf Each shelves can hold up to 8kgs. Who says you dont have place for books?Install these neat invisible shelves,get them filled with books,it will actually look like the books are just floating on the wall.These are very coll,beautiful and unique home decoration. You could even leave space between the shelves to use as a nightstand,so the alarm clock,ect is in the middle of the stack of books.