Trainer: Where serious grip training starts, this is harder to close than anything you’ll find in a sporting goods store.Trainer - 100 lbs ( 45kg )- Captains of Crush Gripper No. 1 - 140 lbs ( 63.5kg )No. 1: If you’ve already been working out with grippers, start here; most people who lift weights can’t close it at first. You’ll want to master this gripper if your job or favorite sport or hobby involves grip strength.
