iPhone 7 Case/iPhone 8 Case Kickstand Finger Rope, Hard Back & Soft TPU Bumper, Shockproof, Compatible iPhone 7 Case/iPhone 8 Case Unique ridge design on the top-side directs hot air away from laptop and your lap. Raises your laptop to a more comfortable height for your wrists. Velvet effect underside provides cushioned and comfortable positioning on your lap. Fully portable - when youve finished, simply let the air out fold the Portapad up until you need it again. Stays inflated for a long time, no need to refill for weeks.