●Package including:Size:1 Set rings,Oversize 72.5mm ●Compatibility: please refer to the Product Description ●Material:First Ring:Semi-Nitriding;Second Ring:Spheroidal Graphite Cast Iron;Oilring:Chrome plated composite ●High temperature resistance, wear resistance ●Attention: The item fits only the specific model listed. Check the item description to make sure the part fits your model