Trimmer Head Spool / Bump FeedPack Size:1Shindaiwa 99909-1560Green Meadow V306, J. Thomas T-252, NHC 207-2121, Oregon 55-306-1, Oregon 55-306, Rotary 30131, Rotary 11987, Sunbelt B1WE502Echo SRM265T Fits bump feed trimmer heads that have 2 prong heads