I was exploring ways to strengthen my hands to help me in my playing. I came across this. Has anyone tried this? Thoughts? I know there are other things like tennis balls and hand grips but I never saw anything like this.
Cando 10-0864 Blue Web Hand Therapy Device, Latex, 7" Diameter, Heavy Resistance
https://www.amazon.com/Cando-10-0864-Therapy-Diameter-Resistance/dp/B008N3KZEC/ref=sr_1_9?dchild=1&keywords=cando+hand+web&qid=1588852400&sr=8-9#customerReviews
