I'll get a picture posted of it, it's a small recessed groove at the bottom of the cut out for the wood grip panel and the small piece of rod fits neatly in the groove--like it's meant to be stored there, with the panel in place, it's held in the groove. I would think if it was a "tool", intended to help with installation, there would be instructions--I see no use for it, but it's interesting that the recess for it is molded right into the rubber, like they intend for it to stay there--its a mystery---