QiYi M1 is a water-based lube that makes your cube feel fast and light immediately. It’s great if you want an instant boost in speed without having to wait for break-in. The bottle has a fine tip that makes it easy to apply just the right amount. Best for use on the pieces, especially if you like a quick and responsive feel. Since it’s water-based, it might not last as long as silicone lubes, so reapplying now and then helps keep your cube feeling fresh.