If you are a big fan of Portal 2, then you should check out this cool Portal 2 bookends below. The size of this bookends is approx. 4 x 5 x 2.25 inches each. Lef side of the bookends featuring half of a test subject going through an orange portal and the right side of the bookends featuring the other half of the test subject coming out the blue portal. They are made from durable aluminium with non slip rubber padding on the bottom. Cool bookends for Portal 2 fans and make a cool home décor as well.