– Professional Piston Ring Pliers – Suitable for 80mm to 120mm (3″ to 5″) rings – Gripping edge prevents damage to rings. – Contoured non slip grips. – Quick and convenient. – Perfect tool to mount and removal piston rings without getting hand cramps or destroying parts, replace piston rings without the danger or damage, breakage or distortion – Universal design that can be used on most engines on vehicles, such as cars, truck, motorcyles, ATV’s, boats – Capacity: 80mm to 120mm pistons in diameter – Smooth gripping edges to prevent damage to piston ring during installation – Nickle-plated finish and plastic handle