The Oregon 3PK 91-188 Mower Blade is a high-quality replacement blade for lawn mowers, designed to fit specific models such as Exmark 103-3231 and 603874. Made of durable iron and steel, this blade is built to last and maintain optimal performance for your gas-powered lawn mower. With a length of 20-1/2 inches and a pack of 3, this black blade is a reliable choice for keeping your yard looking neat and well-groomed. Made in the United States and featuring a California Prop 65 warning, this product ensures both quality and safety for your lawn care needs.