Hello!This is a 1/18 3D model of the very popular ATS type A wheel. I'm providing an STL file plus the STEP file. The second file (named: ATS TypeA) is one I made for a 1/18 Minichamps model but it's made just for them plus a supported file for resin 3D Printing. For any other model use the first files. Thanks for looking and happy modeling/3D printing!