The Muc-Off Bio Drivetrain Cleaner is the complete drivetrain cleaning solution that can either be poured into a chain cleaning device or sprayed directly to your chain rings, rear cassettes and derailleurs to clean your entire drivetrain within seconds. It’s also fully biodegradable and safe for metal, plastic, rubber and seals. You have never seen results like this. Why not try using Bio Drivetrain Cleaner with the Muc-Off X-1 Chain Cleaning Device to provide the deepest clean on even the dirtiest chains! Features - Muc-Off Drive Train Cleaner Fast and effective grease cutting formula Removes all chain oil and wax residue Safely Eliminates drive chain contaminants Biodegradable Ideal for use with chain cleaning devices Trigger spray included for easy application (only with the 500ml bottle) Deep cleans all drive chain areas in seconds Directions for use Shake bottle to activate formula. Spray Bio Drivetrain Cleaner over the entire drive chain area including cassette, chain rings, chain and derailleurs. Leave for up to 2 minutes before agitating stubborn grease, oil or grime with a brush or cloth. If using with a Muc-Off X-1 Chain Cleaning Device, unscrew trigger spray and fill device with formula. Attach the device to chain and spin pedals in reverse motion for 4-6 revolutions. Rinse with fresh, clean water to remove all contaminants. After rinsing, apply Muc-Off Bike Spray and a Muc-Off chain lube for ultimate drive chain efficiency!