We make our Traditional Round Trimmer Line using a premium-grade resin. This line measures .095-inch in diameter. We package it in a five-pound spool. Round trimmer provides increased durability at the cost of reduced cutting speed. Use this type of line for edging along walkways or in other abrasive environments. We make our trimmer line to last. Our premium-grade resin material combined with the round shape results in one of the longest wearing lines.