http://tinyurl.com/ne63ncvOregon 539456 PowerSharp Bar For 16-Inch Stihl Chain SawsProduct Review Click on the link for more reviewsPowerSharp replacement Bar for 16-inch bar for Stihl Chain SawsContains replacement PowerSharp bar and bar-mount sharpening systemMust use PowerSharp PS55 chain with this barFor 3/8-inch pitch low profile chain and .050-inch gauge cutting systemsFrom dull to sharp in as little as 3 seconds