CKB-35.2 Features: Discover the new, revolutionary fitness tool that engages your core and combines cardio with strength training for the ultimate, total-body workout. Versatile for numerous workouts, kettlebells use an off-balance design, forcing your body to stabilize itself, engaging more muscle for faster results. Available in Chrome 8.8lbs to 44lbs.Handle circumference: 4.21″. Handle diameter: 1.34″.