I had found similar-looking “floating” numbers at the local big box hardware store that were a headache to mount, so these were a compromise. I think they were really overpriced, but they were very easy to mount. Just drill a small hole and screw them in. 

They’re very large, maybe a hair larger than I’d like, as I think they teeter on comically large, but they’re very easy to see from the road. I think the floating mount numbers from the big box stores are a little more stylish than these, but these do the trick. The “bronze” color is a true black, which is what I wanted.