The Entity Chain Scrubber DG45 offers the best and quickest way to clean your chain, improving shifting performance and increasing the lifespan of your drivetrain. Directions of use: Slide the handle off, push the lid backwards and lift it to open. Use suitable chain cleaner to fill the container to the FILL mark. Slide the chain into the groove and close the Chain Scrubber unit. Hold the Chain Scrubber with your left hand whilst using your right hand to spin the pedals backwards a few times until you are satisfied with the chain cleanliness. Open the unit carefully to avoid spilling the contents and remove from the chain. Rinse the Chain Cleaner from the chain with clean water and wipe the excess with a clean rag. Apply Lube to the chain.