Enhanced workout versatility—perform kettlebell exercises using your existing dumbbells. Why choose our Adjustable Kettlebell Handle?. Material: Plastic,ABS Plastic,Stainless Steel Sport/Activity: Weight Lifting,Resistance Training Features: Adjustable,90-Degree Rotating Handle,Adjustable Grip,Portable,Compatible with Dumbbells,Ergonomic Handle Design Set Includes: Kettlebell Handle.