I put my fetling knife in the foreground for scale. It's easy sometimes for us potters to list the size of a pot, however that doesn't always compute to holding it in our hands. I tried something new with this one that I think may help with trimming things over 12 inches that and narrow necked. I know their are chucks to use but I like using a heat gun to trim before I cut it off, then I can throw a chuck or use a ready made one to trim the foot.