How to rectify “Chipped” plaster on corners of walls

[Building_novice]

Hello,
Appreciate the help of anyone on this group - had some plastering done, they didn’t do the corners incredibly straight and have long fled. Seems small to get someone else in so would like to have a go myself. It looks like they have put the metal strip thing and then plastered a few millimetres over that, it’s creating a chipped look. Wondering what I can use that will withstand the usual knocks to the corners… any magic products out there? I think polyfiller isn’t that hardy. Many thanks!

 

[Harry Bloomfield]

The edges of the 'metal strips', should be just visible down the corners, the plasterers, should have used the strips as there finished level.

If the surface is proud of the strips, simply chop them out, and set new ones in, at the correct level, and patch the plaster.