Laptop manufacturers recommend that the laptop not be used for more than half an hour at a time. It is a device that can be optimally positioned either for the monitor or the keyboard but not for both. It is recommended that a separate keyboard be added for extended use of laptop. Opus Indigo Laptop supports come in two versions, the first one is meant for those who simply want to try them out and the second for long term use. Both raise the monitor to a reasonable height with respect to the table surface.