gravity casting kettlebell with IRON BULL logo natural surface no need polished with putty gravity casting kettlebell with IRON BULL logo. if the order quantity is large, we can make them with your logo.natural surface, no need polished with puttysize: 4kg, 6kg, 8kg, 10kg, 12kg, 16kg, 20kg, 24kg, 28kg, 32kg. gravity cast iron kettlebell