The Greenworks Ultra Twisted String Trimmer Line Replacement is a commercial-grade twisted cordless string trimmer line that outperforms other lines on the market. It delivers up to 15% longer runtime for cordless battery string trimmers. An aerodynamic twist shape reduces line resistance and vibration, keeping the trimmer from slowing down, using less battery energy allowing more cutting time. Engineered to deliver maximum durability and last 50% longer than residential trimmer line. That means cutting more with fewer stops to get the job done faster. Compatible with string trimmers using 0.095-in diameter line. Greenworks cordless battery string trimmers provide constant, fade-free power with battery-powered technology to provide gas-power equivalent performance without dangerous emissions, smells, hassles or maintenance. With hassle-free, push-button starts you'll get to work fast, with no priming, no choke and no pull cord. Powered by Greenworks. Trimmer line replacement is compatible with string trimmers using 0.095-in diameter line Contains 100 ft. of ultra twisted 0.095 in. trimmer line ensuring plenty of use String trimmer line provides extreme durability and lasts 50% longer than residential-grade trimmer line Twist reduces line flutter, vibration and fatigue to extend battery life Trimmer line replacement is made from professional grade dual polymer for added strength Recommended for use with curved and straight shaft trimmers using 0.095 in. diameter line Designed to bring commercial-grade cutting power to all cordless battery string trimmers Trimmer line replacement is used for trimming or edging grass Made in USA