Wrapping dry hay

I have a customer wanting to buy round bales of horse hay. She has no inside storage nor do I. She has asked me about wrapping them. I have an individual bale wrapper and I told her it would cost about five dollars a bale which she is willing to pay. Does anyone have any experience with this, Wondering if they will get condensation inside and mold. If they will keep good and she’s willing to pay the extra cost I’m all for it. Thanks for any replies. Thanks for any replies

Wrapping dry hay