PUMP SOME CAST IRON! Introducing our Goldens’ Cast Iron Kettlebells. Each kettlebell is made from the highest quality American-made ductile cast iron! Goldens’ Foundry has been producing a wide variety of industrial cast iron products for companies all over the world since in the late 1800’s. Now you can enjoy our durable, perfectly balanced, single-unit cast kettlebells. Get the full set to complete your in-home gym or fitness center! Let’s get in shape! #GetYouSomeFitness!