-DIRECT FIT REPLACEMENT WHEEL - Manufactured to meet all factory specifications: Size - 18"x7.5", Bolt Pattern - 5x4.5" (5x114.3mm). - Offset - 50.5mm, Hub Bore - 67.1mm. Finished in a factory-matching machined charcoal grey with clear coat. - Compatible with Original Part Numbers 52910L3310, 52910L3320. -VEHICLE SPECIFIC - Designed specifically for the 2021 2022 2023 2024 K5 Gt-line. -QUALITY ASSURED - Enjoy a 30-Day Free Return policy. Our wheels are guaranteed to balance, and come with a 2-Year Limited Finish Warranty. Manufactured to meet the highest industry standards, our wheels have undergone strength testing in the United States by an independent agency. -WHAT'S NOT INCLUDED - Please note that the center cap, wheel cover, lugs, lug covers, and tire pressure sensor are not included. If you are replacing a damaged wheel, you can reuse your original center cap, lugs, and tire pressure sensor with our wheel.