Patented 2 part body made of machined brass Silver or copper plated Painted, printed and UV Bright finishes Body emits sonic vibration when free turning gear rubs against the Vibrax bell Brass stamped blades Stainless steel shaft VMC Hook is extremely sharp for quick penetration and perfectly tempered for strength Sizes 3-6 include proper size siwash Runs 2 feet to 6 feet. The patented two-part body emits low-frequency sound vibrations that attract fish and trigger strikes while virtually eliminating line twist. The Classic Vibrax gets a tasty candyback! Colored bell is accented with metallic flecks. Blade is tipped in matching color, while blade back is finished with transparent, fluorescent coordinating color. Flaw-free silver plating, fine tolerances and super-sharp hooks are long-standing features of this low frequency emitting patented two-part body spinner.