"Build the grip, master bodyweight." - Jay R. We developed Rogue Nunchuck Grips as a dynamic new type of grip training tool, machined from portions of our own raw barbell steel. Users can also test their grip strength by attaching a kettlebell to the Nunchucks for the Farmer’s Walk and other movements. Check them out: roguefitness.com/nunchuck-grips | Rogue Fitness