that is a different shape container but the nibs are the same as are all shoe polishes, trust me the shape of the bottle makes no difference, and even if you did, in a moment of pure madness, actually try something out instead of asking on the internet you'd see for yourself that the nibs are fine and when/if it does get fucked up then replace it with felt or whatever or get a new one, you can always pour the ink into a different pen