CORTNEY Hand Grip Strengthener（3 Pack）, Forearm Exerciser Hand Strengthener Finger Extensor Bands for Muscle Training Sports, Stress Relief, Increase Strength, Rock Climbing and Injury Recovery

It is a brilliant idea to come up with these and even more brilliant to provide assorted strength levels (3, 4, 5 kg). They work like a dream. They are a great complement to my exercise routines. You can fiddle with them anytime: in bed before sleeping, on the bus, on the plane, in front of the TV, etc. The cherry on the cake is they are solid quality, easy to fit, and very cheap.

Exactly what I was looking for to help strengthen my fingers. They're cheap, easy to use and do the job. My only issue is the difference in tension between the lightest one (green) and the medium one (blue) feels like quite a big step up in resistance. It would be even better if the blue one was slightly lighter.

I may have weak extensors, but the lowest grade is tough. Loads of room for progression. If you’re a climber or train your grip strength, this is the perfect addition to your training. Quality is good and they fit comfortably on the fingers. Has helped with my golfers elbow

not to good

These finger strengthener are useful and were recommended by my physio.

Great exercise for the hand and improving my guitar playing

I've only used these once so far, I used the green one which is the lowest tension as my fingers are quite weak and I'm hoping to rehabilitate my hand following surgery, so hopefully these will help and I can progress to the blue and finally the orange if possible, move the stetcher down from the finger tip to the first joint below it as I have found it can slip off, but so far seems they will be fine.

These are very good for strengthening hand muscles tendons et cetera, when especially used in conjunction with the softballIt’s very hard to keep up consistency and do it daily, but they do work