The Lisle Dual-Piston Brake Caliper Compressor - 25750 is a tool designed to compress dual-piston brake calipers. It is used to easily and safely compress the caliper piston for brake pad replacement or rotor inspection. This compressor features a unique design that allows for a straight push without any twisting motion, reducing the risk of damage to the caliper. It is made of durable materials and is suitable for use on most vehicles with dual-piston calipers. This product is an essential tool for any mechanic or DIY enthusiast working on brake systems.