Kettlebell Steel handle kettlebell never broken, from 4kg to 16kg in 2kg increment,from 20kg to 52kg in 4kg increment 4kg to 16kg (increment 2kg) 4 / 6 / 8 / 10 / 12 / 14 / 16 = 70kg 20kg to 52kg (increment 4kg) 20 / 24 / 28 / 32 / 36 / 40 / 44 / 48 / 52 = 324kg Total = 70kg + 324kg = 394kg