Chain Fluo Oil 100ml - dry, dusty conditions, UV marker - corrosion protection - maximizes chain performance - enriched with a UV marker, thanks to which you can check the lubrication status of the chain links using an ultraviolet lamp - precise applicator Remember to wash the chain with Washer before lubricating. How to use 1. Wash the chain with Expand-Washer or Clean Drive. 2. Dry the chain 3. Apply a drop of oil to each link 4. Wipe off excess oil with a cloth.