For use with CNC Routers,in Wood, Granite and Solid Surface Countertops placing parts on the machine accurately. Unit is known to be in working order and will be supplied with a set of new reflector prisms. Unit was used for approximately 3 years before being removed and unit is considered as is condition. If buyer wants the unit, it be checked our by a SL technician prior to ship as they are in the proximity to this unit. Unit is used for projecting 2 1/2 D shapes onto table such as used in pod location of countertop and solid wood parts pieces.