This is a high quality reproduction of the CT70 K0-K3 model spark plug guard.  This one is virtually identical to the OEM version (which is long discontinued from Honda).  Usually, these guards are in poor condition due to damage from rocks, crashes, and rust making them hard to restore.  So, the easy solution is to just replace it with a new one to freshen up the appearance of your trail bike.

NOTE: Taking a good quality picture of this chrome piece is difficult but there is no doubt you will be very happy with the quality and workmanship when you see it in person!