COMPATIBILITY--1 inch Wheel Spacers for 95-00 for Hyundai Accent 92-00 for Hyundai Elantra 89-01 for Hyundai Sonata 97-99 for Hyundai Tiburon 01-04 for Kia Optima 05-08 for Kia Spectra 05-08 for Kia Spectra5 83-87 for Mazda 626 84-88 for Mazda RX-7 For more informations please refer to Amazon Garage Tool/ our description SPECIFICATIONS--Wheel Adapter 1 inch Bolt Pattern:4x4.5 to 5x4.5 Thread Size:1/2 Center Bore:73.1mm Hub Centric:No Hubcentric Quantity:4Pcs. Please recheck your vehicle compatibility (year/make/model) in the product description/pictures before purchasing the wheel spacers to ensure this product works for your vehicle MANUFACTURE--Our 4x4.5 to 5x4.5 Wheel Adapter are made of the great true T-6 billet aluminum The studs of our wheel spacer are grade 10.9,heat treated and hardened heavy duty studs,enhance the hardness of the material,widen your vehicle slightly,improved Traction, Acceleration and handling capabilities. Increased Flexibility,enabling the installation of larger brake calipers or lift kits without compromising performance BENEFITS--Our 4 lug Wheel Spacers (1)Increasing the extra gap between tire and vehicle hub assembly,improving the vehicle's performance in terms of handling and traction(2)Giving an aggressive performance to your vehicle(3)Lowering the center of gravity,keeping stability WHAT YOU WILL GET--4Pcs Wheel Adapter with high strength thread-locking. If you have any comments or questions, please do not hesitate to email us. We have a professional after-sales staff for you