Hot Book Sox - Poppin' Purple
Late one night in the Book Sox factory, the crazy chemist cooked up his first creation: Hot Book Sox!  These amazing, color changing book covers are heat sensitive.  Watch them change color right before your eyes with the warm touch of your hands.  See what happens when you put them in the frigid temperatures of your kitchen freezer!  Whether you choose Cream Pop or Bubble Gum you will enjoy watching your Hot Book Sox as they transform!Jumbo fits books larger than 10 inches high x 8 inches wide