Shouldn't even be necessary where we work....
Your review: Column protector works awesome. Installed with no problem and it should save us roughly $6500 when one of our drivers smacks into a pole with a forklift.
Pros: Easy to install. Very visible.
Cons: Not a con (Manufacturing) but our I-Beams are a weird size so they don't quite fit 100%, maybe offer a 6x12 hole