The 43CM 17" 40MnB Universal Lawn Mower Blade is a high-quality product designed for gas-powered lawn mowers. Manufactured by UNIVERSAL KNIFE and backed by a 1-year warranty, this black blade/knife is 17 inches in length and 4 inches in width, making it suitable for a variety of lawn mowers. With fast shipping available, this durable and reliable blade is perfect for maintaining your yard and garden with ease.