The Vibra-Shaft Spinnerbait with the Premium Colrado Blades has the patented Vibra-Shaft tapered wire that transfers all the vibration to the tip of the wire where the blades are. The double Colorado blades on it are specially made for this bait. They have a deeper cup in them than standard spinnerbaits. With the deeper cup blade and the Vibra-Shaft wire, you get a great spinnerbait that is going to put off a lot of vibration at a much slower controllable speed. The Vibra-Shaft is unmatched in water displacement. Moving more water with less effort makes a great spinnerbait. That’s what you feel when you reel the bait back in. If it makes it that far! All of our Stanley Spinnerbaits are built with the finest components available. We’ve been building high-end spinnerbaits for over 30 years and ultimately developed some of the best brand names in the industry.