Ebay Fender, bad deal?

So there's a fender listed on ebay for front and rear bonnevilles, scrams, thrux.

They're made out of fiberglass. I was just wondering if anyone had any idea of quality on these. Is fiberglass alright? They're less expensive than take-off parts, but I don't want them if they're junk.

I'm looking for replacement shorter fenders for my bonneville so I don't have to ruin my stock ones by chopping or when I paint the body parts this winter.

Thanks as always.
 
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