These Portal bookends heighten the perceived intelligence, or PI, of your book collection by roughly 30%. For an increased level of PI, buy another set of bookends and bookend those bookends with your bookends. To reach a maximum level of PI, simply place the Portal 2 Collectors Edition Guide between these bookends. Additionally, wearing glasses and a sweater vest will give you a bonus PI of .7 and a perceived hipness, or PH, of 10%.

Made of shiny & durable aluminum
Non-slip rubber padding on bottom

Dimensions: 4" x 5" x 2.25" each

$29.99