The Toro 106578103 is a genuine 48 cm (18.9 inch) replacement blade designed for various Toro walk-behind lawn mower models. This high-quality blade ensures a clean, precise cut and is engineered to meet Toro's original equipment specifications for durability and performance. It features a length of 480.06 mm, a width of 57.15 mm, and a thickness of 4.06 mm, with a weight of 0.77 kg. Regular blade replacement maintains cutting efficiency and promotes a healthy lawn.