The Nano Gel Mine from Muc-Off is a concentrated solid cartridge for bike cleaner. Mixing five liters of this Nano Gel concentrate with water produces 20 liters of bike cleaner, saving 89% of the packaging. You save money while also protecting the environment. Cleaning is quick and efficient, regardless of the level of dirt and the part of the bike. The product contains a corrosion inhibitor that does not harm paint, anodized surfaces, or seals. It is biodegradable and safe for both the environment and the user. Concentrated gel: five liters of gel yield 20 liters of bike cleaner.