Outer diameter: 2.32 "; Inner diameter: 2.01 ".
Universal for most cars in the market. Please note that it is not suitable for 2009 Corvette, 2015 subaru crosstrek, 2015 Camry, 2014 mazda cx9, jeep liberty, 2022 Kia Sorento, 2003 ford expedition, 2012 Priu, 2024 Tacoma, 2009 Prius, Ford ranger, Ford Bronco, 2008 corolla, Jeep wrangler, 2020 Subaru Impreza, 2024-25 Land Cruiser, etc.