Compatibility: The robotic lawn mower blades are compatible with Stihl robotic lawn mowers: iMow RMI 632, RMI 632 P, RMI 632 PC, RMI 632 C, iMow MI 632, MI 632 P, MI 632 PC, MI 632 C Replacement part number: 6309-702-0101, 63097020101, 6309-702-0102, 63097020102 Package contents: Each pack includes 2 high-quality lawn mower blades. Thanks to their robust construction, they reduce the frequency of replacements, saving money while maintaining consistent efficiency. Premium materials: These lawn mower blades are designed with particularly hard and wear-resistant materials. They are much more durable than plastic mower blades, extending their lifespan and ensuring reliable performance. Ease of use: The robotic lawnmower blades are easy to replace, thin, and easy to carry. They allow for easy cutting of even the toughest branches, ensuring impeccable results for every job. Efficient cutting: The precision-ground mower blades compatible with Stihl robotic lawnmowers provide high cutting speed and accuracy. They reduce energy loss due to friction, ensuring smooth and effortless work.