This is the three parts of tin wear that cover the pushrod tubes.
There are two on the thermostat side and one on the other.
These are in chrome so they will brighten up your engine.
They will fit VW Beetle air cooled all 1300cc, 1500cc & 1600cc except injection models
They will fit all VW splits excluding 1200cc
They will fit all 1600cc VW Type 2 1968 to 1979 except Injection models.
These parts are commonly known as 3 part under tin.