The new Planet Waves Varigrip was developed to specifically train strength and endurance of the individual fingers and the whole hand and extended. The improved ergonomic design of the Varigrip with adjustable pressure resistance allows individual training of each finger on the hand and wrist to the entire forearm. The resistance is continuously on a knurled nut for each individual finger adjustable. Thus, everyone can choose the custom fitting for him Training level, without having to buy another device.