⭐JAPANESE OEM QUALITY⭐JAPANESE OEM DESIGN⭐ ✔ Manufactured from Japanese SUS 420 Stainless Steel ✔ Heat treated to HRC 36+-2 standards ✔ Precision CNC machined and laser cut technology A full OEM replacement disc - constructed using one complete segment of SUS 420 stainless steel, then heat treated to HRC 36+-2 standards. Lightening and drill hole patterns are applied as per OEM specifications to improve braking performance and reduce the discs temperature during use.