Deluxe universal dethatching blade for most walk-behind mowers equipped with 21 or 22 inch mowing deck. 6-in-1 power rake Dethatches, Scalps, Rakes, Cuts, Mulches and Bags. Includes HOP/Toro adapter and .170 inch thick replaceable nylon lines. 3/8, 7/16 & 5/8 universal center hole, Tough replaceable nylon lines, .170 thick. Replacement line part # 490-040-0016. Includes Husqvarna Outdoor Products/Toro adapter. Hardware included.