Premium Stainless Steel Construction Crafted from SUS420J2 stainless steel, this blade offers exceptional hardness and durability, ensuring long-lasting performance. Corrosion and Rust Resistant Designed to withstand harsh outdoor conditions, the blade is highly resistant to corrosion and rust, making it suitable for prolonged use. Integrated One-Piece Design Features a one-piece molded construction for easy installation, ensuring a secure fit with Stihl and Viking robotic mowers. Precision Craftsmanship Engineered with smooth, burr-free edges for enhanced durability and reliability, offering a consistent cutting experience. Sharp Brushed Edge Design Equipped with a finely brushed cutting edge, the blade remains sharp and wear-resistant, providing efficient grass trimming. Specifications Material: Stainless Steel 420J2 Dimensions: Length 28cm, Hole Distance 9.5cm, Large Hole Diameter 8.16mm, Small Hole Diameter 8.10mm Compatible With: Stihl RMI 632, RMI 632 P, RMI 632 C, RMI 632 PC Viking MI 632, MI 632 P, MI 632 C, MI 632 PC