Mistakenly tried to make a short response to earlier postings that referred to OSHA. "Approved" has to much meaning to some folks, so let me reword it: My point was that OSHA has seen them and sees no problem from a safety standpoint. They feel this is a safely designed tool and used within their stationary scaffold guidelines, is safe. I am familiar with the fact they don't "approve" the design of any tool or hardware.
