This rolling over the bed table is great for a variety of uses and environments. Use it in bed at home, as a medical or hospital bed, and its even great for use in wheelchairs. Stay comfortable while you eat, write or surf the web from your sofa or bed. The locking casters prevent any unwanted movement while in use and features an easy to use height adjustment lever to get the height just right. The large work 30"x15" work surface is designed to hold up to 33lbs.