The car tray is lightweight and stable, with a full suspension structure and no bottom support, so your legs can move freely. It features a two-sided design, with a cup holder and a concave surface on the front to prevent food from slipping off; the reverse side has a flat surface with a pen slot for office writing and reading. The price drops from $11.99 to $7.89. Shipping is free for Prime members or on orders over $25.