String Trimmer line  .105 diameter,  SQUARE SHAPE   

This size is commonly found on gas trimmers, this would be nearly all curved & straight shaft trimmers.   Many smaller trimmers this is the maximum thickness they can use.  Check your manual for range of sizes your model can use.    ** In many applications this will fit if the head can accept .095.

• 40' blister pack / donut for easy dispensing
• Orange coloring
• Durable high grade line
• Square shape works in bump heads like round
  

( Estimated at 3 refills typical, most spools use 10 to 15' for each fill )