The katana bookends make it look like you have a katana sword stabbing through your books to hold them up, and will make you the coolest kid in chess club. The bookends have a hidden bracket on the inside of the last book on each end that connects to the sword with a magical new technology called magnets. Great for holding up books, comics, DVDs, or dirty magazines, the katana bookends are made from plastic, and measure 10.5 inches x 6.5 inches x 4.5 inches. Also if you're into katanas, be sure to check out the Katana Umbrella.