STIHL C4-2 AutoCut® EasySpool™ Trimmer Head is crafted from durable, heavy-duty plastic and designed for effortless line loading without disassembly. I for residential trimming tasks, it accommodates thicker trimmer lines and ensures enhanced line release with a simple tap on the ground. Featuring EasySpool™ technology, it enables quick and hassle- trimmer line . Compatible with most straight or curved shaft trimmers, this trimmer head a convenient and efficient solution for maintaining your garden. Model Number: 4006 710 2123