Muc-Off's Bio Drivetrain Cleaner is the complete cleaning solution for your chain. You can spray it directly onto the chain, cogs, and derailleurs, or use Muc-Off's chain cleaning device to get a completely clean chain in seconds. It is fully biodegradable and safe on metal, plastic, and seals. You've guaranteed never seen such results! Biodegradable Fast and effective grease removal formula Removes all chain oil and wax residues Safely removes contaminants in the chain Ideal for use with chain cleaning devices Thoroughly cleans all parts of the chain in seconds