A durable bump head replacement with auto winding technology that eliminates the need for spools. The head is made from carefully crafted glass-filled nylon for superior durability and abrasion resistance, it can withstand the extreme demand of any job. It can hold up to 20 ft of 0.080 in. line and diameters up to 0.105 in. with its auto winding technology, you never have to open the head, simply line up the arrows on the bump knob, insert the line, and crank. It provides the continuous cutting benefit of a bump head without having to open the head or deal with tangling spools. Bump feed trimmer head Superior durability and abrasion resistance Auto winding technology, never open the head, simply insert line and crank Accepts line diameters from 0.080in up to 0.105in Blade Material: Other Installation Time (Minutes): 5 Package Contents: Replacement trimmer head, includes adapter kit for easy installation Type of cutting material: Line Universal Fit: Yes Warranty: 90-day CA Residents: Prop 65 Warning(s): No Safety Listing: Not safety listed UNSPSC: 27112000