Best Finger & Exerciser Stretcher by Ritfit,Hand Extensor Exerciser，Finger Grip Trainer for Relieve Joint Pain, Injury Rehabilitation,Relaxation & Grips Workout

Not only can you exercise your fingers, but it also perfectly holds celery sticks and fits most peanut butter jars so you don't need to use anything else when you have that hankering for peanut butter & celery. No kidding. It really works. Since it comes with 3, you can use one to exercise your fingers with, 1 for your crunchy peanut butter and 1 for your creamy peanut butter. Pictured is the 48 oz size jar of peanut butter.

Great to help build strength

Update 4/1/2018:After this review the seller reached out to me and offered either a refund or a replacement. I opted for the replacement which came super fast. I am updating my rating to 4 stars, and if it doesn't break I will update to 5 stars.Original review:Bought these because I was having elbow pain and read where strengthening my fingers could help. Have been using the light blue one to build strength, and today it snapped and broke, after only a couple of weeks use.

If the band piece located between an index and a thumb was strengthened, it would probably be better (although it would automatically become harder to use). But I ripped 3 of those already in that same spot. Also, becomes noticeably more fragile if left in a cold environment, e.g. inside the vehicle during winter time.

I bought for my husband he likes them. Quality is good, kinda hard to use but will work for the purpose.

I am a farrier by profession, and have stronger than average hands I'm sure. I couldn't use any but the lightest (level 1) and barely that. The holes are positioned incorrectly for even tension as the fingers extend outward. Then it broke after maybe three uses. Junk.

Product as expected. Good quality

This was listed as a therapy tool, but would probably be better suited for a hand without injury to work on strength. I was in rehab, I lost nerve control in my left hand so I was expecting the resistance of a worn rubber band. I cannot fully extend my fingers, as would be typical for someone needing therapy but I could barely open the lightest band with my strong/normal hand. I saw the opposite in other reviews saying it was "too easy" and they broke it. I am dissapointed in those other reviews. They were very likely people who did NOT need therapy and were using them for fun, so it made me believe these bands would be a great match for me but clearly those people were just using them improperly. Ultimately it's not a terrible product it just need to be marketed better. I understand they want a wide customer base but these are simply too strong for therapeutic needs.

Muy útil para fortalecer la muñeca