This two cylinder piston engine has cylinders arranged in a V configuration. This bell is much bigger than a traditional Guardian Bell.  The clapper is actually two pistons.  Made in the USA from the highest quality, lead-free pewter. Believe in the power of the legend. Guardian® Bells provide twice as much good luck when given as a gift! Each bell comes with a velvet bag and a Guardian® Bell legend card. Perfect for use on motorcycles, backpacks, keychains, and luggage-really anytime and anywhere you’re on the road. | Magnum V-Twin Bell by Guardian Bell