This is our Standard Retube Kit for the Fender Pro Jr. It contains a matched pair of JJ EL84's, an ECC83S for V1, and a balanced ECC83S for the phase inverter in V2. A nice upgrade from the stock tubes, sweet and warm! Just let us know in the comments section if you're looking for an early breakup, a moderate breakup or a later breakup for more headroom in which case we will choose the coolest grades we have available for the power tubes.