New, unopened. This is a matched set of 4 tubes. The rating is 4. On online music store websites, you can't choose this rating and they are sent randomly, so this is recommended for those who want a specific model. This is the popular Medium 4. These are Groove Tubes, used by many musicians such as Slash, Zakk Wylde, and Randy Rhoads. These are particularly standard, high-quality tubes made in Slovakia. These models are no longer in production, so they may become even more rare in the future. They are said to be a perfect match for Marshall amps, and as shown in image 7, Slash has used them for many years, so they are recommended for those seeking the Slash tone. No price reduction. Instant purchase is OK. We will ship the same day. Marshall amp marshall slash EL34 power tubes Groove Tubes, made in Slovakia