The Performance Tool W80574 Wrinkle Band Ring Compressor is a must-have tool for engine repair enthusiasts. With a versatile design that can fit 3" to 5" pistons, it's perfect for use in most passenger cars and truck engines. This wrinkle band ring compressor features a low friction design that makes it easy to use and reduces the risk of damage to the piston or cylinder walls during installation. Plus, it's adjustable, so you only need to adjust it once for all pistons, saving you time and effort in the long run. Whether you're a DIY mechanic or a professional, the Performance Tool W80574 Wrinkle Band Ring Compressor is easy to use and built to last with its high-quality materials.