Hi! I am presenting you some concept jewelry for automotive enthusiast. As you see this is Wankel engine based ring. I have it in 5 sizes ( EU: 54, 55, 56, 58, 59/ US: 7, 7.5, 8, 8.5, 9). I can send you 2D drawings with the dimensions of the model. I work with passion. I'm ready to make your ideas in 3D model supported with 2D drawings with dimensions, that you can use for your brand. I will make sure that you will be satisfied at the end of the process.