PS56 16" Oregon replacement PowerSharp chain

Oregon PS56 power sharp chain with replacement sharpening stone part # PS56. 56 drive links.  Power sharp is an easy to use precision sharpening system that gives chain saw users the power to sharpen their chain in a matter of seconds with a simple attachment. From dull to sharp in as little as 3 seconds. Portable Precise. Powersharp chain stays sharp three times longer than oregon 91VG chain.  This chain is a replacement chain and stone for the 541656 power sharp system.