1. Material: The brake caliper compression tool is made of high quality material, with strong, wearresistant, thick surface, high strength to use, very durable and not easy to rust, can be used repeatedly. This brake pad separator guarantees an extended lifespan for reliable usage. 2.Function: The spreader tool facilitates pushing the brake caliper piston back forward without causing any harm to the piston surface, making it a good choice. Ensure that it will not be deformed under prolonged use and repeated operation, and will not damage the brake components. 3.: The brake caliper tool is used to reset the brake piston when replacing the brake pads. It helps to push the brake piston of the caliper backward/forward without damaging the piston surface. This brake pad spreader has a finelycrafted thread, ensuring a seamless and effortless operation, providing both ease and efficiency. 4.Wide Compatibility: The length of the disc brake pad expander guide rod is 120mm/4.72In, and the opening range is 075mm/0In2.95In. Suitable for most cars, motorcycles, trucks, SUVs on the market. This brake pad separator effortless operation, significantly reduces labor, and provides convenience.