Kettlebell Sets - Adjustable Kettlebell Set for Strength Training - Kettlebells Adjustable Weight for Versatile Workouts. EASY TO ADJUST: The kettlebell weight set has 3-in-1 weight options from 5 to 12lbs, enabling various weight combinations for squats, swings and deadlifts; Its separate kettlebells are easy to adjust and lock in, giving users peace of mind while working out.