VW control arm bushing. This control arm bushing fits in the front smaller hole on the front control arms. They help dampen the suspension while going down the road. If you notice excessive noise from your front suspension or extra play in your steering it could be this bushing. Drivers and passenger side are the same. Sold each, 2 required per vehicle.
If your VW control arm bushing has failed in your Golf, Jetta, Corrado, or Passat it is likely the rest of the rubber that mounts the control arm in the car have rotted too. You can replace it all in one shot and reinstall your control arm with new hardware by using the control arm mounting kit shown below. This is also a good time to replace the ball joint on your Volkswagen; they can be tough to remove so you may end up damaging yours. A direct fit replacement is shown below.