zenstyle 4 tier bookshelf no-assembly folding book case home office storage ladder shelf industrial standing bookcase organizer book-shelf rack zenstyle <b>featured: </b><br> - high-quality e1 grade mdf board with no odor and mildew<br> - water resistance wood texture surface <br> - preferred carbon steel pipe resistant to rust<br> - installed with installed on the back adding stability and preventing items falling<br> - non-slip feet pad protect the floor from scratching<br> - come with pre-assembled and no tools required<br> - fold flat with folding side panels and shelves for storage<br> - not only for inside but for outside storage<br> - stylish design give your home decor an elegant taste<br><br> <b>detailed: </b><br> material: e1 grade mdf board & carbon steel pipe<br> color: brown <br> dimension: 23.6”l x 13”w * 50”h <br> weight: 28.7 lbs <br> height of each tier: 12.4” <br> max load capacity of each tier: 70 lbs <br> mdf board size: 22”l x 11.8” x 0.6” thinkness<br> steel pipe size: 0.82“l x 0.82”w x 0.9“thinkness<br><br> <b>package content: </b><br> 1 x metal frame<br> 4 x mdf board<br><br> <b>tips:</b><br> if there is any problem about the folding bookcase,please contact us,we are willing to help you.