This Eiki 3860A Still Picture Overhead Transparency Projector has been tested and is ready to use. It is a great addition to any office or business setting. The projector is designed for overhead projection and is perfect for displaying still pictures or transparencies. The unit quantity is one and the brand is Eiki 3860A. This model is perfect for those who need a reliable and efficient projector for their business or office needs. It is easy to use and maintain, making it a great investment for anyone who needs to display still pictures or transparencies on a regular basis.