150-Feet 0.065-Inch Line String Trimmer Replacement, 3 Packs of 50-feet replacement line eliminates time spent hand-winding string trimmers. Compatible with most standard gas and electric string trimmer models. Includes a 0.065-Inch, blue diameter line, replacement line is factory wound for a superior feed Color coded by diameter size. Choice of landscaping professionals. Durable use, Used for trimming and edging grass Constructed of flexible and impact resistant materials.