These are high quality reproductions of the Z50 76-79 model lower muffler guards.  They are referred to as “Cover A and Cover B” by Honda and ours are virtually identical to the OEM version (which are long discontinued from Honda).  Both guards are often bent from rocks or running over things like logs, curbs etc.  And if not bent, they are usually rusty and pitted making them hard to restore.  So, the easy solution is to just replace them with new ones.