FRONT EYE BROW SPOILERS ON 71 RR

[RR71RR]

Just bought these front spoilers for my 71 RR. They are suppose to be poly plastic like the originals but they look like Fiberglass. Not sure about this.Does anyone no the difference?

 

[slimt]

Poly will flex. Fibreglass does not

 

[71RRHI]

They don't look like fiberglass. From the pictures.

 

[slimt]

Poly urethane will bend like a pretzel. Fibreglass is solid no flex.