Craftsman Smart Advance Replacement Spool .080 Diameter, 71-85939 30 ft. of Smart Advance Replacement Trimmer Spool .080 inch diameter For use with Craftsman trimmer models 74243, 74245, 74519, 74550, 74553, 74565, 79510, 79154, 79182, 79515, 79519, 79550, 79553, 79554, 79559, 79627, 79628