The product is a matched pair of PrimaLuna 12AX7 preamp tubes, specifically the model from PrimaLuna. These tubes have never been used. The 12AX7 model is known for its high-quality performance and is a popular choice among vintage audio enthusiasts looking to enhance their sound systems. With the brand's reputation for producing top-notch vacuum tubes, these new PrimaLuna 12AX7 tubes are sure to deliver exceptional sound quality for those who appreciate vintage audio technology.