1Fitment: Designed by the identical size and function of the Oem car part, perfect replacement for 3 E36 1991 ? 2000; Replacement for 3 E46 1998 ? 2005; Replacement for 5 E39 1995 ? 2002; Replacement for 7 E38 1994 ? 2001; Replacement for 8 E31 1989 ? 1999; Replacement for Z3 E36 1995 ? 2003. 2Oem: The Oem of this tow hook ring are 72151965186, 72150141166, 72157203519, 72158108670, NMX7625 for reference, please check the part number of your item before purchasing. 3Solid Structure: This tow hook ring is made from steel alloy, which is a high strength and anti impact material, so our trailer hitch is durable enough to support a lasting use especially in extreme weather. 4Ideal Substitute: Carefully forged with solid inside, and thread size is perfect for your model, which enables to tow the car safely without damaging the front bumper. Our trailer tow hook ring is an outstanding and reliable aftermarket part. 5Convenient to Use: Easy and quick to install, and no modification or special tool is required, and it can directly replace the old or broken trailer hinge hook.