Just what the doctor ordered!
Your review: I bought these to mount on studs (under the drywall) in my garage so I can pull my truck (slowly) in as far forward as possible without damaging the wall. Works great for this purpose. I don't know what speed would cause them to fail - but I am not planning on testing that scenario!
Pros: Easy to mount: pilot holes, lag bolts, and washers.
Cons: These are subtle looking (all black). If you need flashing lights or reflective surfaces you will need to be more creative! :-)