Heavy Duty Bookends: Made of heavy-gauge steel,it is perfect for big heavy books such as collectors books and binder. Non-slip wear-resistant rivet silicone pad design avoid direct metal friction, noise reduction and wear resistance.Expandable Bookcase: 3.9-18.9 inch x 5.9 inch x 7.5 inch, retractable design, the adjustable bookend can be expand to 18.9 inch and contract to 3.9 inch to meet various needs, you can easily remove one item without dislocating the others.Decorative Bookends: Hollowmetal design, make the bookends more stylish. The adjustable bookend have 3 grids together, different kinds of books or notebooks can be classified into different grid to keep your books or desk tidy and clean.Make Your Room More Tidy: Keep a heavy duty bookend to hold your book, magazines, CD, DVD, VIDEO, games, cookbook, binders and the other things standing, so that your home becomes more beautiful and tidy. Can be use in home, school, office, and library.Great Gift: These heavy duty bookends can be use as a business gift to your business partner to hold up the ring binder, it also will be a perfect gift for housewife, it will provided the solution to their cookbooks in the counter.