The Magic Sleeve Duo is 28.75 x 12.75" unfolded. It has been designed to hold a medium laptop (like a 13" or 14" MacBook Pro) and small or medium tablet (like as 11" or 12.9" iPad). Work with your devices side by side with universal control. Or use the extra wide space as a space for a mouse or trackpad. Magnet a cable keeper to your sleeve's perimeter to keep your cables organized and prevent them from slipping off your desk pad when your devices are not present. Note 15/16" laptops don't fit in the Duo.