Heavy Grips Hand Grippers - Set of 3 Non-Slip - 100lb, 150lb, 200lb – Effectively Train Your Hand Grip Strength - Targeted Forearm, Wrist & Hand Exercises – Advanced Hand Grip Strengtheners

I purchased the 100, 150 and 200 and also the 250, 300 and 350Let me start off by saying that I have pretty intense forearms and grip to begin with. I have 50, 60, 90 and 100 lb rubber rings that I squeeze alot. I broke the 100lb ring and decided that I needed to revert to metal. I would have gone to these in the first place if I had known about them!Very good value and very good quality. Every heavy grip comes with a lifetime warranty. I see reviews complaining that something broke, well get a replacement for life! I had no problems at all with my grippers. They were right in-line with their rated spec weight. Because I had already been doing the rings etc the 100lb was not enough and I gave it to a buddy. I started with the 150 and 200. The gripper package tells you, but I will emphasize again train like you would with any other weight and you will see impressive gains in your hand strength. 10-12 reps and then do the higher weight 10-12 and then drop to the lower weight and do 10-12 more reps. Negatives or using your non gripping hand to assist squeezing then slowly releasing with your gripper hand works too. Then give yourself a day to recover. So I started with the 150 and 200 and in 5-6 days (or my 2nd or 3rd session) I started integrating the negative 250 lbs down to the 150. After about 8-9 days I am only using the 200 and 250. I did a bunch of reps with the 150 for the heck of it earlier after a set with the 250 and 200 though. I plan on starting to integrate the 300 with negatives in another 5-7 days. When you get to the point of doing the 200, 250, 300 or 350 no one will have a stronger grip than you. I squeeze my reps with the 250 and no one that I work with can come close to squeezing it once. A guy who I work with saw the 250 in the drawer at work and picked it up and tried to squeeze it. He looked at me and was in disbelief that I squeezed the thing (He actually didn't believe that I did until I grabbed it from him and knocked out 10 reps) You get to the 200 or 250 and Popeye will have nothing on you. Beyond that and you need to be very careful when you shake other peoples hands.Great quality grippers delivered promptly and inexpensively. I highly recommend.

very good workout. robust. nice to use.

I bought these as a supplement to my adjustable (between 20 and 90 lbs.) hand gripper since I was wanting to take my grip strength to another level. I play racquetball so I thought these would help, and let's face it, as much as we use our hands in everyday life it certainly can't hurt to have more grip strength.After using my adjustable gripper then using these I can say that design and materials can impact grip strength. For example, I can do the 100 lb. gripper easier than my 90 lb. one which is made more of plastic and has different ergonomics. That being said, I really like the way these things are designed and I love the material used. They seem very durable and I don't have any problem whatsoever with chaffing of the hands etc. Initially chaffing/rubbing/etc. was a concern of mine due to the metal construction. I've "summarized" this product below, along with a slight bit of background about myself which may aid in determining which ones to buy.Me- Age- 40, Height- 6', Weight- 205, Work out regularly, but not a lot and don't focus too much on lifting. 100 lbs. was easy for me, 150 lbs. was slightly harder but almost ready for 200 lbs. already. (In retrospect I probably should've bought the 150, 200, 250, but since my 90 lb. "trainer" was somewhat difficult I wasn't sure, until now)Pros- Great Materials and Design, good challenge and grip workoutCons- None, but keep in mind different designs, materials, etc. that may contribute to ability to do certain weights

My set of three needed to bee broken in, using two hands, before they budged. After they seemed to have consistent resistance. I could barely close captain's 100 ( that I gave away)... and I can barely close champion's 100 (see pic).Further, I can only close 150 two-thirds and 200 one-third. So, comparatively, they seem consistently resistive.But since I had to break them in, I worry that they will lose over time.BTW: The are design to be rough, to toughen up hands skin, which is good for grip strength. But it will probably be uncomfortable at first.

I have a set of grips that look like these that I bought a couple of years ago. They are 50, 100, and 150 though. So when I started looking for a set for my son I wanted the same ones. These look identical to mine except they are 100, 150, and 200. I took a chance and figured he could build up to the 100, or could borrow my 50 for a while if needed. When we opened them I realized right away the handles were made out of a much lighter material. Of course he had to grab the heaviest one first and managed to squeeze the 200 completely closed a couple of times. When I tried it I realized another big difference, these were much easier to close than the ones I have. Don't get me wrong, they look like they are well built and should last a long time. And it will be a while before he needs anything heavier. I'm still giving these five stars even though the weights are way off from mine, maybe it's mine that are wrong. Some people might think the lighter material on the grips is a positive so no points off for that either. For what it's worth, my son is in his late 20's, works out a lot and these should be a challenge for him for some time.