bumper

Hi, I have a Honda cr-v 07 reg, which has recently had some parts knicked from the front driver side bumper. I know one is a parking sensor, but does anyone know what the other part is? Also any advice on the best place to source tthem? Any advice greatly appreciated. Cheers.

Help :( I had a small accident in my car and hit the side of my car into a concrete post. Would I just need to buy a new bumper and left side wing?