Once you have developed a strong foundation in Gripper training, you may want to challenge yourself even further. (dieselcrew.com)
If you are serious about taking your grip strength and game to the next level then you NEED to checkout this information that Jedd Johnson has about training with grippers. (varietytrainer.com)
Then in 2004 or 2005, another style of Gripper came on the scene, Heavy Grips. (dieselcrew.com)