Simple to Use: Squeeze the compression tool handle until the plunger touches the inside brake pads, continue squeezing to compress all pistons. Makes it easy to change the brake piston pads Practical: Whether you're a beginner or a professional, the spreader allows you to change your brakes quickly and easily. If you are a professional mechanic/amateur racer/car mechanic/track enthusiast, then this brake caliper tool will surprise and satisfy you more than any other tool Compatibility: Brake caliper tool compresses the brake piston at the same time, works with most car and light truck brake calipers (work with disc brakes, not drum brakes) Metal Material: The caliper compressor is made of aluminum alloy metal material, which provides strength and durability to ensure long term performance for repeated work Labor Saving: Compared with knob handles and swing handles, the squeeze handle can be easily adjusted, reducing hand pressure and fatigue during use