SENQCIA Ultra-Max SBR Heavy Series cottered roller chain is manufactured to a special high performance specification. These solid bushing/solid roller chains offer premium performance and long life in a wide variety of applications.The link plates of the heavy series are one size thicker than standard roller chains providing additional strength in heavy duty applications. Packaged chains are pre-lubricated with high quality wax-type grease and come with a necessary connecting link to join the ends. Offset links (used to shorten or lengthen a chain strand by 1 pitch) are also available and sold separately. This chain is packaged in a 10ft box.