... viynl kettelbell with round handle dumbbell. Vinyl Kettle Dumbbellsize:5,7,10,15,20,25,30 ... handle dumbbell.*Helps develop total body strength,power,and endurance.*Kettlebells work the body across a ... increases the demand placed on core stabilization,agility and proprioception.*Use for squats,throws,cleans,jerks, ... snatches,rotational swings and more.This is the newest style of ...