Compaids, Inc. manufacturers two types of slide-out keyboard trays for use with personal computers. Model C15 is designed for desktop use. It can stand alone, or it can fit under a desktop CPU or monitor. Model UN8 is designed to be mounted underneath a desk with screws. Both units are manufactured from laminated particle board supplied by SSS Industries and use two slide assemblies purchased from Corrigation, Inc. The following table summarizes the wholesale selling price and requirements for each keyboard tray.