Our Kettlebells meet the quality standards needed for commercial usage. Full cast iron, wide flat bottom, no rubber piece that can fall off over time, low profile color coding, and non aggressive texture provide the best possible workout experience. Please check them out in store today! Specs: full cast iron 4kg, 6kg, 8kg, 12kg, 16kg, 20kg, 24kg, 28kg, 32kg, 36kg, 40kg, 44kg, 48kg, 52kg, 56kg (9lb, 13lb, 18lb, 26lb, 35lb, 44lb, 53lb, 62lb, 70lb, 80lb, 88lb, 97lb, 106lb, 114lb, 123lb) Wide flat bottom Color coding Commercial Quality No rubber piece Weight tolerance +/- 3%
