The Muc-Off Bike Care Duo Pack covers Stage 1 and 2 in the Muc-Off cleaning system. The award-winning Nano Tech Bike Cleaner cuts through dirt, mud and grime quickly and safely without the need for acids or dangerous chemicals. Next, Muc-Off Bike Protect is the ultimate post-wash water dispersant. Not only does it rid your bike's frame and components of moisture, but it also leaves a non-sticky layer of protective to prevent rust and corrosion.