POWL ROO-ders
* POWL: The "ow" sounds like the "ow" in "cow" or "how."
* ROO: The "oo" sounds like the "oo" in "moon" or "food."
* ders: The "ders" is pronounced like the "ders" in "orders" or "unders."
So, it's POWL ROO-ders, with emphasis on the first syllable.