The STIHL Nylon Trimmer Blade 41110071001 is a pack of 12 genuine replacement blades for Stihl trimmers and brushcutters equipped with a PolyCut mowing head.¹ Made from a durable, impact-resistant polymer, these flail blades are designed for clean and consistent cutting of grass and light weeds.² They are a simple and reliable alternative to traditional trimmer line, offering easy installation and excellent durability for maintenance around the home or farm.