Value Metal Bookends: Book ends measure 7.1 x 4.7 x 3.5 inches with L-shaped design which can effectively keep your books neat and upright easily. 2 sets of 4 packs give you a great value experience. Upgraded Thickness: Our bookends for shelves are made of heavy-duty steel that won't bend easily. Upgraded thickness is stronger and sturdier than the old version. Anti-static spray paint makes the book ends decorative last longer. Anti-slip & Safety: Each book end has 4 foam anti-slip pads at the bottom to prevent the bookend from sliding when supporting heavy books and to ensure not scratching your desk and bookshelf. Rounded corners and smooth edges can protect your books and fingers from being scratched. Modern Unique Design: Modern unique round tree of life design is more decorative than the basic book holder. Not only can organize books neatly, it's also a good decoration for your home and office. Absolutely a perfect gift for friends, teachers and students.