Swing into action with the Bowflex SelectTech 840 Kettlebell, the adjustable kettlebell that provides 6 different weights in one compact design! Save space by selecting the weight you want with the turn of a dial, allowing you to achieve total-body results from the comfort of home. With the 840 Kettlebell, you'll combine cardio and strength in one quick, effective workout, helping you build muscle, burn fat, and boost confidence.