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