Like I said: When Marshall is being cheap, you buy these... I mean it is really unheard of that the LEADING Guitar Amps and Cabinets manufacturer in the WORLD will not supply these with their 2x12 cabinets, despite the fact that they already are fitting said cabinets with the bases where these screw on... That said they are perfect for the job. Mind you they are the ONLY ones fitting Marshall cabinets, since said cabinets are routed in such a way that there is no room for after market, snap on, ones!