http://www.harpoonlure.com/VibratingJigBlades.html

I bought several of these blades.  They are much thicker than the rad or gambler blades and the split ring needs to be replaced with one of higher quality.  That being said. They work fine. I have had some fun putting them on different style and size jigs.  Last night I put one on a 1 1/2 oz jig.   It was so heavy the only way I could get it to vibrate was with a very aggresive stroke.  That got old really quick.  Anyway you get the picture.  It's fun to play around with.