The French Creek Trailing Rope Grab attaches anywhere along your vertical lifeline. You won't need to worry when your lifelines have thimbles or snap hook ends. The Trailing rope grab slides along automatically with the worker and locks into place if a fall should occur, allowing your guys to focus on the job and not sliding their rope grab as they work.
The stainless steel construction of this rope grab is more durable and weather resistant than galvanized steel construction. Hey it's rust proof, so it'll be sticking around for a while, it is designed to fit 5/8" 3-strand synthetic rope, which is one of the most common ropes used in vertical lifelines.