Platinum Gatorline Trimmer line is great for professionals because it is better at resisting breakage than standard trimmer line. Plus, it offers outstanding durability and shock absorbency thanks to its highly flexible core. This trimmer line is low noise, which means it produces fewer decibels of noise when it spins, helping you comply with local noise ordinances. .155" diameter trimmer line is an ideal fit for many string trimmer models, including but not limited to Remington RM1159. Platinum Gatorline is compatible with most trimmer head systems including fixed-line, semi and automatic bump-feed heads. Fits most gas, electric and battery-powered straight and curved shaft string trimmers. Check your string trimmer manual for recommendations and to ensure that larger lines will work with your trimmer. The twisted shape reduces noise while improving cutting efficiency, so you don't need to put in as much work to get a clean cut as you would with traditionally shaped trimmer line.