Vintage quack medical device. Selling as a display piece. The case shows some wear. All of the two items work, and two pieces are missing. There is tape around the cord. It gives off a nice violet light when the glass tube is inserted. With the glass tube put in place slowly turn the knob at the end of the generator to the right. It will click as you turn the knob. The more you turn it the brighter it gets. It is advised not to use for more than 10 minutes per session. It starts to heat up. Perfect the doctor in your life. We don't think it is insurance approved or advised to rely on this as a medical device.