Oregon maintenance kit for 14 in. Ryobi Chain Saw (models RY40530, RY3714) and 14 in. Homelite Chain Saw (model UT43104). Kit includes replacement chainsaw chain (Oregon S52), replacement chainsaw bar (Oregon 27856), 5/32 in. chainsaw sharpening file with guide, and Oregon's premium bar and chain oil. Everything you need to keep your chainsaw equipped, cutting sharp and ready for the next job. A chainsaw file and guide allows the user to sharpen the saw chain accurately, efficiently, and effectively to ensure you are getting the most out of your chains. Oregon bar and chain oil prevents excessive wear of saw chain and the chainsaw guide bar while also protecting the saw from corrosion and rust.