The STIHL AutoCut C 5-2 mowing head, part number 48090114124, is an original equipment manufacturer (OEM) accessory designed for efficient grass and weed trimming. This durable 'tap-and-go' line feed head allows for quick and easy line advancement by tapping it on the ground. It is engineered to use 2.0 mm diameter mowing line and is compatible with a range of STIHL electric and cordless trimmers, including models FSE 60, FSE 71, FSE 81, FSA 60 R, FSA 80, FSA 90, FSA 130, and FSA 135. Weighing approximately 0.19 kg, this mowing head ensures reliable performance for various trimming tasks.