Hang It Dang It Quilt Hanger-21-inch To 35-inch, Other, Multicoloured

I just ordered this item but a message pops that shipping is not possible at my address. Why? I've

Will this work for a 38 1/2” quilt or do I need a larger size?

My tapestry has the rod pocket at the top edge, would this work to hang it.

I am looking to hang a banner that is 21" wide, will I be able to use this product or is it too big?