Optimum Bait Company's Furbit the Frog is no ordinary rubber frog. Its two legs are supple strips of rabbit fur that ripple and flutter in a breathing manner. These legs will flutter and shutter in an S-like movement. Nothing artificial even comes close. Furbit has a molded-in belly weight and weighs 5/8 oz. A ball bearing swivel and colorado spinner blade attach beneath it. The blade adds flash and vibration and best of all causes Furbit's entire body to tremble.