GD Hand Grip Exerciser Strengthener (Premium Adjustable Hand Gripper) Wrist and Forearm Strength Trainer

I must say it’s one of the best gripper on the market. Hand span can be infinitely adjusted with great precision. Spring tension is easily adjusted by front knob. There is no clicking sound as in many Chinese cheap copycats (avoid). Very good grip in hand - no knurling on front handle giving it a very good feel in hand. Simple sturdy and light construction -not too heavy as other GD gripper. Needs a bit of grease from time to time on the main nut to keep it running smooth but this is not a problem and it’s very easily done with perfect access. Best feature to me as compared to other grippers on the market is that the handles compress in parallel rather than at an angle as in standard simple grippers. This gives a great feel in hand and it’s properly ergonomical giving uniform action when compressing. Not the cheapest gripper but I don’t regret buying it. Great product from GD Korea.

I have previously had two adjustable hand grip trainers of a cheaper variety, and in both cases the spring broke after some use. It's easy to see that this model has a much sturdier construction. The plastic is hard and has a good structure and finish. If you look at the picture, you can see how the handles are constucted, and the internal walls make them much harder to break. The design is superior to other models, and by having a sturdy spring that compresses when used, there is almost no chance of it snapping like in the cheaper models. It's also fits nicely in my grip, and adjusting it is very straight forward. You simply turn a metal wheel that adjusts the angle of the spring, therby making it harder or easier to compress the grip trainer. There is even a scale in both kg and lb to keep track of your progress.

Pros Good Build Quality Can make small adjustments to gradually build strength Eliminates the need to buy multiple grips Way better than some of the cheaper ones you will have bought or seen which claim to have resistance up to x KG/lbls, trust me they don't. Cons Adjustments can be a bit finicky until you get used to it Although good quality its a bit harsh on the hands, expect the odd blister and callouses until you get used to it. Ultimately you get what you pay for. Some of those at £10 or less claim to be adjustable up to 60kg, they aren't and there are youtube videos proving this, they tend to max out at about 25-30kg. My main criticism of these gripers is that they are not very comfortable, but once your hands become hardened to them it shouldn't be an issue.

Excellent item, good value for money and easy to adjust and use regularly

The sad thing about this product is that when it worked, it was brilliant and so much more flexible/adjustable than all the others that I considered. Sadly, one of the pins had a habit of slipping out with use (not broken per se, just irritating). I asked for another one. All they offered was a return and full credit. I did not want a faulty product but, I did want the versatility. Against my wishes, I sent it back.

Great tool for grip strength!

Great build quality, sure it will last a long time. 4.5 stars, as the handle would benefit from being larger or having some padding. I'm a ~6ft ~80kg man and cant manage all that much more than the minimum weight! Don't recommend for the young, elderly, smaller men or women who aren't especially strong. Do recommend for gym fanatics and strongmen. It ranges from 25kg to 70kg (at least according to their measurements). Weight is set by the spring moving up and down. KG is printed on one side and lbs on the other and you compare where the spring is to these measurements.

Package and instructions were both purely in Korean, no english instructions available. Packaging also had a Korean website address and a contact email (in gmail, which was worrying) The actual product itself felt sturdy and quite well made. This is the only grip strengthener I have seen to not have the "pulling handle" pivot on an point, and instead, the whole handle extends and retracts perpendicular to the stationary handle; as opposed to being at an angle due to single point of pivot. A minor issue I have with the product, the resistance is set by twisting the metallic cylinder and pulling the handle makes a small portion of the metal interior arm push against the cylinder. The whole contraption here is greased to lubricate the action, which can sometimes get a bit messy. The metal arm also tends to leave a bit of metallic residue/paint onto the cylinder (both grease + residue can be see on pic 5 provided) A strange thing I noticed was the fact the metallic arm which pushes onto the cylinder is painted black, whilst the other arm is not. Seems a bit strange leave this unpainted....