Beaverswood floor markers with warning messages beaverswood fm12 this highly visible ear protection must be worn floor marker from beaverswood is designed for use in warehouses and other workplaces the easy to understand message is printed onto the underside of a clear pvc film and then laminated on the back surface of the floor marker with a highly effective permanent adhesive the sign is suitable for use on dry clean flat sealed surfaces and although designed for the floor it can be us