BUICK Semi-metallic/Low-metallic/NAO/Ceramic Disc Brake Pads Manufacturer PRODUCT DETAILS 1.100% asbestos free. 2.Ultra quiet-reduce brake squealing, groaning and vibration. 3.Extremely smooth stopping power with consistent brake pedal feel . 4.Ultra low rotor wear and less dusting for cleaner wheels. 5.Excellent heat dissipation and superior fade resistance. 6.Extended longer pad life. 7.Guarantee of 30000-60000KM. 8. Certificates of ISO/TS16949 and ISO/ 9001:2008 and ECE-R90.