Power Gripper Metal Series - Professional Grip Strengtheners (50lbs - 400lbs) for Grip, Wrist & Arm Training

This is an amazing product that is very effective at training your grip strength, my only criticism of this item is the dotted texture on the grips that make it very uncomfortable to grip tightly as it will rub heavily against your skin, this makes it next to impossible for long term usage of this product. I would still highly recommend this item to anybody looking to increase their grip strength.

Fan of the powerball brand since trying to boost my forearm and hand strength for racket sports. Been using a budget adjustable spring gripper that goes up to 60 kg. After closing that for 3-5 reps I fancied going to something a bit more challenging so bought the red and black. Two days I can half close the red and cannot even make a dent in the black. These feel solid and have a nice design. The reviews complaining about comparing to CoC are slightly over the top. These are literally half the price and feel super tough. Unless you need to know that you are gripping a certain weight I can’t imagine why anyone would have a problem with these. Works great with the power ball as a warm up. Not sure how many months of training it will take before I can close the 250…

The feel of these are great, with a good grip and decent width.The weight seems to start a little on the high side meaning it feels mildly incomplete for lighter exercises, and the final strength grip feels impossible, as an avid lifter of years, even using 2 hands for this it did not budge(I scored 74kg on a digital grip tester, after 2 months of training with these after initially scoring 63)

So i ordered a 150 lbs to start , i had no idea that I already have a strong grip as i used to deadlift heavy weights in the past. Then I ordered another 200 , 250 and 300lb. 200 was pretty easy so i moved to 250 which at first was little hard but after working out for weeks on and off now i am easily doing reps with it too. Few days ago i closed the 300lb a few times and it felt amazing. Now heading to 350 but its definitely going to take time maybe even a year more. Not trying to brag about my strength but these definitely help to gain control and strength both. Use it after a good warmup and if you use a pre workout then even better results. My forearm pops out even more now. Great product and yes the quality is amazing too. Only downside is the 200 lb started one started squeaking a bit.Anyways good purchase.

I like this product because it is useful for its purpose but I would say that it’s not very comfortable.

I ordered the blue set, thinking that they'd be pretty easy work. Wrong. I have stubby fingers and therefore don't have the mechanical advantages of someone blessed with large hands. These provide a decent test, I use a 3 second squeeze to close, 2 seconds in the closed position and then a 3 second release. I'm up to 5 continuous reps and my grip is definitely improved for it. Small handed brothers and sisters, be wary of ordering grippers stronger than the blue ones!

I've now bought the 50lb all the way up to the 200lb and they all have their uses. I tend to use the lighter one when I need a warm up at when I feel I need a lighter training day or more volume to mix it up.As for the weights, I'm an 80kg male that does office work and is half fit! I can just close the 150lb, the 100lb is a reasonable work out for my left (weaker) hand and the 200lb I can about half close. I've also got fairly small hands. That should give you can idea where to start. My wife can almost close the 50lb.The finish of these grippers is nice, the could are handy to quickly see which is which. The surface is a little rough but gives good grip and even my keyboard warrior hands can handle it! I do get the of squeak but nothing a tiny drop of oil doesn't cure.Overall a great buy, I can see lasting years. Just don't overdo it initially, slowly build up the volume. Grip training takes a lot longer than just muscle strengthening as your tendons and ligaments have keep up too and have a lot less blood supply.Edit: I can now close the 200lb easily and I'm 1cm away from the 250lb. It takes time and the 250lb is very tough for someone with smaller hands. The range of resistances is proving very useful to warm up. 250lb by Christmas!

The build quality of the product is very high and I would find it very surprising if you were able to damage it in any way. The spring and handles are entirely made of out metal and the spring is coated with a rubber for extra protection. The grippers are definitely weighty which prevent them from slipping out of your hands.The small 'serrations' on the grips ensure that your hands wont slip even when they are sweaty. The only problem with these are that they cut into your hand when you grip them tightly like your meant to and make your skin feel sore and develop callouses.Also due to this product being all metal, they wont require washing or cleaning as much.The price is justified as the build quality supports it. You have to go out of your way to throw them hard or something to genuinely damage these, the most you'd probably get is to scuff the paint on the handles.Recommended.