Brand: Wiseco Manufacturer's Part Number: RCS40200 Part Type: Piston Ring Compressors Product Line: Wiseco Ring Compressor Sleeves Summit Racing Part Number: WIS-RCS40200 UPC: 00193564176141 Adjustable: No Tapered: Yes Piston Ring Compressor Material: Aluminum Piston Ring Compressor Finish: Black anodized Quantity: Sold individually. Wiseco Ring Compressor Sleeves Wiseco ring compressor sleeves save your rings! Installing thin high performance oil rings can be difficult. Their sleeves compress piston rings smoothly and evenly to prevent bent and broken rings. These ring compressor sleeves are machined from Wiseco sleeve forging to ensure toughness， and they are hard-anodized and PTFE coated for low friction and prolonged wear resistance. Plus， since these sleeves are designed with a smooth radius that tapers down to the specific bore size， your installation of any piston is a breeze! Choose high-quality sleeves that make your engine work easier--Wiseco tapered ring compressor sleeves.