Armrest Covers Arm Rest Covers On Sofas And Chairs?

Arm rest covers on sofas and chairs? - armrest covers

I have some arm that came with my couch and chair. I had this piece for over five years and have never armrest covers.

However, the ceilings are diagonally cut at one end and the other end is easy (if applicable) with the rest of the armrest (which have the same length. I wonder if it should in the final in the chair diagonally couch, or should there?

I hope that explains.

Thank you!