Ryobi 32909152-2G Electric Pole Saw Replacement 8" Chain Bar RY43160;

Ryobi 32909152-2G Electric Pole Saw Replacement 8" Chain Bar RY43160 

This part is compatible with the following machines:
Ryobi
RY43160 Electric Pole Saw
This is a manufacturer approved replacement part designed for use with Ryobi pole saw. Bar holds the cutting chain in place. If it is bent or worn out, causing the chain to not cut properly the bar should be replaced. It is made out of metal and it is sold individually.

You would need a screwdriver a wrench set to replace this part.
Remove the housing
Release the chain tension
Remove the chain and the tensioner
Remove the bar and replace it with a new one
Secure the tensioner and the chain
Reassemble the housing and tighten the chain