This prompt "Product is not compatible with your machine" appears when you shop Please ignore this meage, because our products are universal (trucks, buses, RVs cannot be used). Our products are suitable for almost all Sedan, 97% commercial vehicles, 95% SUVs, please rest aured to buy. If you are still not sure, it is recommended that you measure the diameter (outer diameter) of your car's steering wheel. Our products are suitable for standard steering wheels with a diameter of 38cm(15inch) . 100% wool, cut from New Zealand sheepskin Permeability: permeability, very good, people sitting on top of the body, hair under the surface pores between the fibers to form a layer of air flow, direct contact with the skin, people feel more relaxed, comfortable and soft. Thermal resistance: fine dense wool layer is recognized as excellent good warm material, mainly from its excellent insulation performance and air permeability. PAYMENT: 1.