Pair of Paradigm PW 300 speakets

Pair of Paradigm PW 300 speakers Come with Paradigm wall mounting brackets. Not sure why the screw do not work so we can not remove the wall bracket. Used in our holiday house at the ocean and unfortunally got some rust marks on the grills. Amazing sound tested using Playfi local radio. Work on bluetooth too. Inital used as surrounds for a paradigm pw soundbar which we still own but not sure if that feature still works in playfi. Great sound for someone which is looking to get it fixed or do not put to much attention on cosmetical issues.Selling as it is, have some rust mark on the grilles not sure if can be removed. Asking 280$ for the pair. Was sold at 399$ each + the wall brackets