Features: Professionally designed with a 1.5mm calibration check marking for high accuracy result, reliable in using. Especially designed for measuring the distance between the lower side of the backing plate and brake disc without removing the wheel. For both internal and external brake pads, designed for brake pads that have a normal 6mm thick backing plate. Slim-enough to locate the rear of the pad backing plate, allowing the probe- to measure the distance between the underside of the backing plate and brake disc. Made- of high-quality metal and plastic, wear-resistant and durable. Specifications: Material: metal Package Includes: 1xBrake Pad Thickness Gauge note: Please allow 1-3cm error due to manual measurement. please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.