DAIRF Finger Strengtheners, 6 PCS Hand Grip Ring Workout Kit - Strength Trainer 3 Resistance Levels Easy Medium Heavy Increase Strength Improve Dexterity Relieve Wrist Pain

No instructions came with these but it was pretty obvious what they were intended to do. The 'doughnuts' are for squeezing and strengthening one's grip. However, equally important is strengthening movement in the other direction. After a bit it is fairly obvious that you stick four fingers in the holes and the thumb in the one lower down and then open the hand as wide as possible. This is less fun and much more difficult than using the ring but it is very much worthwhile sticking with as these are muscles that are totally necessary and much neglected.

A good six piece set to help work the hands and wrist.I'm using the green for my right hand which has been weakened due to over typing since March and can now be very temperamental. Mum is using the blue set (too hard for me to use at present.Use mine at home and at the office.

So after injuring my fingers climbing I purchased these to help with the physio. After a month of using them I'm back at it and I feel like they've definitely helped with the recovery.

I like the colors and the materials used .it might helps my grip to be stronger. The rings might also be used for strengtening my jaw. I will update this review after a month or so.

Not for adults - too small... Good for children thoughPros - no nasty smell

Simple products, can definitely feel difference in each grade.

Only used for a few days and can see the rubber starting to tear on the stretchers. Also no labelling on the packaging as to the resistances.

Purchased it because thought it will help me with some issues (tendonitis, bursitis ), and can say I see the difference.