Manufacturer Part Number: \n4002-710-2108, 4002-710-2168, 4002-710-2191 \nString trimmer head fit for the following models of string trimmers: \n FS44, FS48, FS55, FS56, FS80, FS81, FS85 \nFS86, FS90, FS100, FS110, FS130, FS200, FS250 \nDolmar BC337, BC377 \nSubaru Robin NB04, NB042D, NB2001 \nPacking List: \n3 x trimmer heads \nNote: \nPlease well check pictures and specifications to confirm the compatibility before purchase \nPlease contact us first if finding any problem of the products. We will do our best to provide satisfactory customer service