Snub decachoric antiprism

The snub decachoric antiprism or snadap, also commonly called the omninsub pentachoric antiprism, is a convex isogonal polyteron obtained through the process of alternating the great prismatodecachoric prism. However, it cannot be made uniform.

Using the ratio method, the lowest possible ratio between the longest and shortest edges is 1:$\sqrt{9+3√2}$/3 ≈ 1:1.21301.