Laptop Desk with Built-in Cushion LED Light and Cup Holder (17.5" X 13.5") (Butterfly High Heel Design) Built-in cushion comfortably forms around your lap to create a stable base for laptops and more ntegrated adjustable LED lamp (on/off switch), Built-in cup holder & Pen/pencil holder Lightweight with handle, easy to carry around Ideal for work, reading, laptops and eating. Convenient built-in cup holder. Requires 3 x 'AA' batteries (Batteries not included)