4 Pack Grip Strengthener, Resistance 50/100/150/200 LB Hand Grips Strengthener, Forearm Strengthener, Non-Slip Metal Hand Gripper for Hand Exercise, Muscle Building for Athletes
The four packs are suitable for different groups of people and different training stages.
50 LB for teenagers or womenstarting grip training. 100 LB for men starting gripstrength training. 150 LB for adults with averagegrip strength. 200 LB for regular exercisers.