The Vatiz Adjustable Hand Gripper, Double-Spring Version by Vatiz

Five stars because I can't see anything wrong with this item so far. it is for people who already have reasonable grip strength. If your grip strength is weak you might struggle with this. It's to develop a powerful grip rather than for rehab. The beginning setting is 27KG which is 59.5 pounds. It goes up to 110KG-242.5 pounds using one spring and up to 177 KG-390 pounds using two springs. It has a very smooth action. I chose this model/brand because you can move your fingers into the position you want like an ordinary spring gripper. I find that hand grippers that separate the fingers cause me discomfort, but that might not be a problem for you. You may prefer it.

The vatiz gripper is a very nice thing indeed. I have a few grippers, RB plus a lot of CC,s and a few other brands. The thing that makes this worth a look is how it feels. It's the most consistent grip I've got.. The tension is immediate and the same from the beginning of the squeeze to the close. It's very well made also. Definitely recommend it, especially if you are training to go through the cc range.. Its a good companion to the ccs in your training. I like it more than my RB highly polished special edition gripper in the feeling it has. Pretty expensive these days but you will use this one.

Qualty is fantastic