Relaxing while your Robomow perfectly mows your lawn is great, but the blades that do all the hard work can go blunt over time. Unlike other robotic lawnmowers, Robomow gives you the ability to easily self-service your mower and replace the blade. With the MRK9100A twin pack of replacement blades for RX models, you can put new blades in your mower and have it up and running again and back to doing all the hard work, so you can get back to relaxing.