Arnold Trimline .105-Inch x 180-Foot Residential Trimmer Line Residential .105" Trimmer Line Universal / Fits most gas string trimmers Nylon material is the perfect grade for the average trimming jobs around the yard 180-feet of red line, 4-Point Star Contains 12 refills Replacement residential string trimmer line Universal / Fits most gas string trimmers Nylon material is the perfect grade for the average trimming jobs around the yard .105" diameter, red line, 4-point star Measures 180 ft.