Due to the harsh marine environment today, preventive maintenance is a must! With their anglers in mind, Penn Synthetic Reel Oil was developed to assure optimum lubrication protection against corrosion and rust, offering smoother operation, extending superior results for longer casting and smoother retrieval. Penn products are endorsed by both Saltwater and Freshwater guides. For quality products always ask for Penn by name. Available in two sizes: 2oz and 4oz.