This is the largest backing plate available in the Dodo Juice range, suitable for the Supernatural 150mm Maxi Merino wool pad (120-125mm backing plates are generally recommended for 150mm foam pads). It has a medium-firm foam layer to keep the pad as flat as possible, maximising the contact area and increasing consistency of finish - yet without compromising cut unduly.
What else? Well, it uses the 'hook and loop' pad fixing method, the thread is European M14 spec and it can spin up to four times faster than a normal rotary machine polisher at full power before it disintegrates into tiny red particles or goes back in time. So it's easily up to the job.