The Snap-on Blue-Point Piston Ring Compressor Pliers RC980 is a high-quality hand tool designed specifically for compressing piston rings in automotive engines. This set includes 6 rings for various sizes and comes from a reputable brand like Snap-on. The unit is a must-have for mechanics looking to properly install and remove piston rings quickly and efficiently, ensuring a reliable and leak-free seal in the engine. With a durable construction and precise design, these piston ring pliers are a valuable addition to any automotive tool collection.